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DonaldRobinson's avatar
DonaldRobinson
Copper Contributor
Oct 25, 2023

Excel Formula Help: Running Count in a Target Cell

I have 3 columns that I am working with a Date (A:A), requested (B:B), and, shipped (C:C). The problem I am running into is the following: I'd like to add the sum of column B and subtract the sum of column C. However, there are times when items are shipped (C) without being requested (B). That puts the target cell (H2) at a negative. Then, when a request does come in, the target cell becomes inaccurate because its adding from a negative number.

 

Current Formula: =SUM(B:B)-SUM(C:C)

 

Example of the Problem: B1 is 10 and C1 is 12. Target cell displays -2. Request for 10 more come in B2 is 10 and nothing in C2. Target cell displays 8. I need the target cell to display 10 because that is the running number of items requested.

 

Is this even possible or should I find a workaround?

 

 

3 Replies

  • mtarler's avatar
    mtarler
    Silver Contributor
    try (assuming you have excel 365:
    SUM((B:B-C:C)*(B:B>C:C))
    • DonaldRobinson's avatar
      DonaldRobinson
      Copper Contributor
      Thanks for the reply. Unfortunately, I am on Professional Plus 2016 (work computer and account). The above formula does not seem to be working for me.
      • mtarler's avatar
        mtarler
        Silver Contributor
        try replacing with SUMPRODUCT:
        SUMPRODUCT((B:B-C:C)*(B:B>C:C))
        alternatively try using CSE (ctrl-shift-enter when you enter the formula)

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