# Sum using right or left function

#### sneaky911

##### New Member
I have a simple attendance tracking spreadsheet. Data validation is set up to select the "violation" from a list. The violation also has a point total attached to it. Example: Call off 1.0, Early out 0.5, NCNS 3.0, etc. How can I sum a range using the "Right" function? I'm only interested in the values 1.0, 0.5, 3.0 etc.

I can get it to calculate if I do each cell individually:
=SUM(RIGHT(C3,3),RIGHT(D3,3),RIGHT(E3,3))

How can I simply highlight the entire date range and use the RIGHT function to calculate the point values? (Columns C-E)

 Name Total Points 8/2/19 8/3/19 8/4/19 Bill 3.00 Early Out 0.5 Absent 1.0 NCNS 1.5 Cathy 1.00 Excused 0.0 Early Out 0.5 Early Out 0.5 Sally 1.50 Tardy 0.5 Tardy 0.5 Tardy 0.5 John 2.00 Vacation 0.0 Absent 1.0 > 50% shift worked 1.0

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### Excel Facts

Why are there 1,048,576 rows in Excel?
The Excel team increased the size of the grid in 2007. There are 2^20 rows and 2^14 columns for a total of 17 billion cells.

#### Fluff

##### MrExcel MVP, Moderator
=SUMPRODUCT(--(RIGHT(C2:E2,3)))

#### joeu2004

##### Well-known Member
Try:

=SUMPRODUCT(--RIGHT(C3:E3,3))

PS.... Just saw Fluff's similar response. There is no need for, nor benefit to, putting an extra set of parentheses around RIGHT(C3:E3,3).

Last edited:

#### sneaky911

##### New Member
Works perfectly! Thank you both.

#### Fluff

##### MrExcel MVP, Moderator
Glad we could help & thanks for the feedback

#### sneaky911

##### New Member
Need help with one more thing. I've modified your formula a bit. It works as expected with one exception...I need to include something that will avoid throwing an error if there's a blank cell in the range. I've tried a few different things all producing different results. Just to clarify the blank cell would be in E3:NX3.

=SUMPRODUCT(--(INT(\$E\$2:\$NX\$2>TODAY()-365)),--(RIGHT(E3:NX3,3)))