# Cumulative sub totals for matching unique identifiers

#### Andyatwork

##### Board Regular
Hello all,
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I am using excel2007 and after spending a couple of days googling and searching various forums, I have solved all but one of the problems my current spreadsheet challenge has thrown at me. So I turn to the combined wisdom of the Mr Excel forum members in the hope that you can shed some light on this for me.
<o></o>
My spreadsheet contains a list of sales transactions containing amongst other things the customer (a unique identifier) and a cash value. I need to calculate a second cash value on a sliding scale, derived from the first. I’ll call this derived value “Tax” for ease of reference.
<o></o>
The problems and constraints are;
<o></o>
1) The customers may appear more than once in the list or once only.
2) The Tax value is based on a sliding scale, for which I have a (long) working formula but it only works if the customer appears once only.
3) I need to achieve this with formulas not macros/add-ins or pivot tables.
4) I need to work out this Tax value on a cumulative basis.
<o></o>
For reference, the derivation formula for “Tax” is;
0% on the first 110,
Between 110 and 844 it is 11% plus the 0 on the first 110,
Over 844 it is 1% plus the 11% on the previous 734, plus the 0 on the first 110.
<o></o>
For example, a list of 10 transactions, by 7 different people.
<o></o>
<TABLE class=MsoNormalTable style="MARGIN: auto auto auto 4.65pt; WIDTH: 606px; BORDER-COLLAPSE: collapse; HEIGHT: 39px; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt" cellSpacing=0 cellPadding=0 width=606 border=0><TBODY><TR style="HEIGHT: 15pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>customer<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>proceeds<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461>Tax<o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 1"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>1<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>500<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461>
</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 2"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>2<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>400<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461>on 400<o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 3"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>3<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>300<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461><o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 4"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>4<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>230<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461><o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 5"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>5<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>150<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461><o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 6"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>2<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>300<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461>on ((400+ 300)- (the derived value on 400))<o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 7"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>2<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>200<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461>on ((400+300+200)-(the cumulative derived value on 400+300))<o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 8"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>6<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>700<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461><o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 9"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>2<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>425<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461>on ((400+300+200+425)- (the cumulative derived value on 400+300+200))<o></o>

</TD></TR><TR style="HEIGHT: 15pt; mso-yfti-irow: 10; mso-yfti-lastrow: yes"><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=73>7<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=72>950<o></o>

</TD><TD style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 346pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" vAlign=bottom noWrap width=461><o></o>

</TD></TR></TBODY></TABLE>
<o></o>
Customer #2 appears 4 times.
I was planning on calculating the Tax value on his first proceeds value (400) then the next time customer #2 appears in the list, work out the derived value on his running subtotal (400+300) at this point and then subtract the previously derived Tax value on 400.
Next time he appears, I’ll work out the Tax Value on the new subtotal (400+300+200) and subtract the calculated Tax value on (400+300), repeating this pattern for each subsequent time he appears in the list.
<o></o>
The goal is to charge customer #2 the same amount of tax as though he had carried out a single trade for the combined proceeds value, but show the individual tax amounts as the proceeds total moves up through the sliding scale.
<o></o>
I have managed to work out how to sum all the proceeds for a given customer using SUMIF and how to work out how many times the customer appears in the list using COUNTIF and while I could run my formula on the grand total and then average/pro-rata it that is not appropriate for the greater task at hand.
<o></o>
To reiterate, I have cracked the formula for calculating the Tax on the sliding scale, it is how to get the sheet to look up for previous appearances of the customer and work out the next portion of Tax that I am stuck on.
<o></o>
Any advice on how to get the sheet to scan up the list, looking for any and all previous occurrences of an identical customer identifier, reading across to the proceeds column and subtotalling the proceeds so far would be very much appreciated.
<o></o>
<o></o>
<o>Many thanks, </o>
<o>Andy</o>

Last edited:

### Excel Facts

Lock one reference in a formula
Need 1 part of a formula to always point to the same range? use \$ signs: \$V\$2:\$Z\$99 will always point to V2:Z99, even after copying

#### Domenic

##### MrExcel MVP
Let's assume that A1:B11 contains the source data...

<TABLE style="WIDTH: 104pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=138><COLGROUP><COL style="WIDTH: 52pt" span=2 width=69><TBODY><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; WIDTH: 52pt; HEIGHT: 15pt; BORDER-TOP: windowtext 0.5pt solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 width=69>Customer</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; WIDTH: 52pt; BORDER-TOP: windowtext 0.5pt solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 width=69>Proceeds</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>1</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>500</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>400</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>3</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>300</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>4</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>230</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>5</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>150</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>300</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>200</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>6</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>700</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>425</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 height=20 align=right>7</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl63 align=right>950</TD></TR></TBODY></TABLE>

Try...

C2, copied down:

=SUMPRODUCT(--(SUMIF(\$A\$2:A2,A2,\$B\$2:B2)>{0,110,844}),SUMIF(\$A\$2:A2,A2,\$B\$2:B2)-{0,110,844},{0,0.11,-0.1})-SUMIF(\$A\$1:A1,A2,\$C\$1:C1)

The result should be as follows...

<TABLE style="WIDTH: 156pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=207><COLGROUP><COL style="WIDTH: 52pt" span=3 width=69><TBODY><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; WIDTH: 52pt; HEIGHT: 15pt; BORDER-TOP: windowtext 0.5pt solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 width=69>Customer</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; WIDTH: 52pt; BORDER-TOP: windowtext 0.5pt solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 width=69>Proceeds</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; WIDTH: 52pt; BORDER-TOP: windowtext 0.5pt solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 width=69>Tax</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>1</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>500</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>42.9</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>400</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>31.9</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>3</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>300</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>20.9</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>4</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>230</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>13.2</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>5</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>150</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>4.4</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>300</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>33</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>200</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>16.4</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext solid; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>6</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>700</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>64.9</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>2</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>425</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>4.25</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 15pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 height=20 align=right>7</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>950</TD><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext; BACKGROUND-COLOR: transparent; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 0.5pt solid" class=xl65 align=right>81.8</TD></TR></TBODY></TABLE>

#### Andyatwork

##### Board Regular
You are a miracle worker Domenic, works like a charm. Thank you so much.

Not only did you solve the referencing issue you have given me a more elegant solution to my sliding scale tax formula which I had previously resolved with a bazillion nested IF formulae.

If I could possibly impose on your knowledge a moment longer, I need to explain how this works to my boss so that she will sign off on it, and while I just about understand SUMIF (look for a critera in the first range and if it matches add up the appropriate values from the second range), the SUMPRODUCT bit baffles me.

I can see that its doing something in a table array and am guessing it is comparing the calculated subtotal to the 0/110/844 scale and applying the appropriate multiplier (0/11/1%) depending on where the sub total falls in that scale, and I am guessing that the last part of the formula is subtracting the calculated tax value for a previous match, but I have no idea what the "--" bit means just after "=SUMPRODUCT(".

Would you mind putting it into layman's terms for me please? Or at least terms that middle management can understand .

Thanks again

Andy

#### Andyatwork

##### Board Regular
Will do, much obliged.

Excel contains over 450 functions, with more added every year. That’s a huge number, so where should you start? Right here with this bundle.

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