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excelexcel-formulasumproduct

Excel Use of SUMPRODUCT to multiply column then reduce percentage column


Update: I've got the formula to work but now get a warning that the formula in the cell refers to cells that are currently empty, can someone help with that? The formula now is:

=SUMPRODUCT(A1:A2,B1:B2,1-C1:C4%)

I'm sure this is a simple one, but I can't fathom it

I'm trying to multiply the rows of one column, with the corresponding values in another. That part I've got, what I need to do now is reduce this value by the percentage in another column.

Here's the dataset

Column A Column B Column C
10 5 10
5 6 8
Total

What I have so far for the Total is this formula:

=SUMPRODUCT(A1:A2,B1:B2)*1-C1:C4

Which isn't working

COLUMN C is the percentage column

The total is the value of the formula I'm trying to create

Hope this makes sense


Solution

  • Put the column C range inside the SUMPRODUCT:

    =SUMPRODUCT(A1:A2,B1:B2,(1-C1:C2))
    

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