Pro Rata Values

harrycosh

New Member
Joined
Feb 27, 2009
Messages
25
Hi

I am having difficulty in trying to Pro Rate values over a number of months. I have inserted a sample of my sheet below of what I am trying to achieve. At the moment I am manually inputting the Pro Rated Values.

<table x:str="" style="border-collapse: collapse; width: 923pt;" border="0" cellpadding="0" cellspacing="0" width="1224"><col style="width: 63pt;" width="84"> <col style="width: 67pt;" span="4" width="89"> <col style="width: 74pt;" span="8" width="98"> <tbody><tr style="height: 12.75pt;" height="17"> <td class="xl24" style="height: 12.75pt; width: 63pt;" height="17" width="84">
</td> <td class="xl22" style="width: 67pt;" width="89">Inv Amount</td> <td class="xl22" style="width: 67pt;" width="89">Start</td> <td class="xl22" style="width: 67pt;" width="89">End</td> <td class="xl22" style="width: 67pt;" width="89">Total Days</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> <td class="xl23" style="width: 74pt;" width="98">
</td> </tr> <tr style="height: 12.75pt;" height="17"> <td class="xl29" style="height: 12.75pt;" height="17">Period Start</td> <td class="xl31">
</td> <td class="xl31">
</td> <td class="xl31">
</td> <td class="xl31">
</td> <td class="xl31" x:num="40176">29/12/09</td> <td class="xl31" x:num="40205" x:fmla="=+F3+1">27/01/10</td> <td class="xl31" x:num="40234" x:fmla="=+G3+1">25/02/10</td> <td class="xl31" x:num="40270" x:fmla="=+H3+1">02/04/10</td> <td class="xl31" x:num="40299" x:fmla="=+I3+1">01/05/10</td> <td class="xl31" x:num="40328" x:fmla="=+J3+1">30/05/10</td> <td class="xl31" x:num="40364" x:fmla="=+K3+1">05/07/10</td> <td class="xl31" x:num="40400" x:fmla="=+L3+1">10/08/10</td> </tr> <tr style="height: 12.75pt;" height="17"> <td class="xl29" style="height: 12.75pt;" height="17">Period End</td> <td class="xl31">
</td> <td class="xl31">
</td> <td class="xl31">
</td> <td class="xl31">
</td> <td class="xl31" x:num="40204" x:fmla="=+F2+F4">26/01/10</td> <td class="xl31" x:num="40233" x:fmla="=+G2+G4">24/02/10</td> <td class="xl31" x:num="40269" x:fmla="=+H2+H4">01/04/10</td> <td class="xl31" x:num="40298" x:fmla="=+I2+I4">30/04/10</td> <td class="xl31" x:num="40327" x:fmla="=+J2+J4">29/05/10</td> <td class="xl31" x:num="40363" x:fmla="=+K2+K4">04/07/10</td> <td class="xl31" x:num="40399" x:fmla="=+L2+L4">09/08/10</td> <td class="xl31" x:num="40428" x:fmla="=+M2+M4">07/09/10</td> </tr> <tr style="height: 12.75pt;" height="17"> <td class="xl30" style="height: 12.75pt;" height="17">Period Days</td> <td class="xl32">
</td> <td class="xl32">
</td> <td class="xl32">
</td> <td class="xl32">
</td> <td class="xl32" x:num="">28</td> <td class="xl32" x:num="">28</td> <td class="xl32" x:num="">35</td> <td class="xl32" x:num="">28</td> <td class="xl32" x:num="">28</td> <td class="xl32" x:num="">35</td> <td class="xl32" x:num="">35</td> <td class="xl32" x:num="">28</td> </tr> <tr style="height: 12.75pt;" height="17"> <td style="height: 12.75pt;" height="17">
</td> <td class="xl25" x:num="">3601.12</td> <td class="xl26" x:num="40269">01/04/2010</td> <td class="xl26" x:num="40633"> 31/03/2011</td> <td class="xl27" x:num="" x:fmla="=+D5-C5+1"> 365</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28" x:num="9.866082191780821" x:fmla="=B5*(1/E5)">9.87</td> <td class="xl28" x:num="276.250301369863" x:fmla="=$B$5*(I4/$E$5)">276.25</td> <td class="xl28" x:num="276.250301369863" x:fmla="=$B$5*(J4/$E$5)">276.25</td> <td class="xl28" x:num="345.31287671232872" x:fmla="=$B$5*(K4/$E$5)">345.31</td> <td class="xl28" x:num="345.31287671232872" x:fmla="=$B$5*(L4/$E$5)">345.31</td> <td class="xl28" x:num="276.250301369863" x:fmla="=$B$5*(M4/$E$5)">276.25</td> </tr> <tr style="height: 12.75pt;" height="17"> <td style="height: 12.75pt;" height="17">
</td> <td class="xl25" x:num="">24000</td> <td class="xl26" x:num="40269">01/04/2010</td> <td class="xl26" x:num="40999"> 31/03/2012</td> <td class="xl27" x:num="" x:fmla="=+D6-C6+1"> 731</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28">
</td> <td class="xl28">
</td> </tr> <tr style="height: 12.75pt;" height="17"> <td style="height: 12.75pt;" height="17">
</td> <td class="xl25" x:num="">256.39</td> <td class="xl26" x:num="40270" x:fmla="=+D7+1">02/04/2010</td> <td class="xl26" x:num="40269" x:fmla="=+C6"> 01/04/2010</td> <td class="xl27" x:num="" x:fmla="=+D7-C7+1"> 0</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> </tr> <tr style="height: 12.75pt;" height="17"> <td style="height: 12.75pt;" height="17">
</td> <td class="xl25" x:num="">654.59</td> <td class="xl26" x:num="40299">01/05/2010</td> <td class="xl26" x:num="40310"> 12/05/2010</td> <td class="xl27" x:num="" x:fmla="=+D8-C8+1"> 12</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> <td class="xl25">
</td> </tr> </tbody></table>


Thanks
 

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I hope this makes more sense. I am trying to apportion the value for the days that it falls under in the period. If the value falls under a whole period then all the days in the period should be apportioned a value, and if it falls on part of a period then only part of the value should be apportioned depending on how many days it falls on.
 
Upvote 0
I have inserted an updated version of my sheet. I hope it makes things clearer. Also I would like the sheet to be clever enough to realise that the end date of an invoice is before the start date and so not apportion anything.

Excel Workbook
ABCDEFGHIJ
1Inv AmountStartEndTotal DaysCalcualtions
2Period Start01/04/1029/04/1027/05/10Calculated TotalDifference
3Period End28/04/1026/05/1030/06/10
4Period Days282835
53,601.1201/04/201030/06/2010911,108.041,108.041,385.053,601.120.00
624,000.0001/04/201030/04/20103022,400.001,600.0024,000.000.00
7256.3915/04/201015/06/20106262.03115.7978.57256.390.00
8654.5901/05/201030/04/2010-10.00654.59
Sheet1



Thanks in advance
 
Upvote 0

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