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Summing the last 7 non-blank entries in a row of data
I have a continually growing row of data that I want to sum automatically.
An example is: I want to store the sum in cell A1, data is currently in cell B1, C1, E1, F1, and H1. B1=2, C1=3, E1=1, F1=4, H1=2. I want the result in A1 to = 12. The next day I add data to cells I1, J1, K1, and M1, where I1=2, J1=3, K1=2, M1=5. After adding the new data, I want the result in A1 = E1+F1+H1+I1+J1+K1+M1 = 19. I found the following equation in one of the discussion threads for this scenario, but I noticed it doesn't add up correctly. Is there a way to do do this? Any help would be appreciated! Found equation: =SUM(OFFSET(B1,,COUNTA(B1:CO1),,-(MIN(COUNTA(B1:CO1),7)))) |
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Summing the last 7 non-blank entries in a row of data
Biff,
Sorry for the late reply, I was in a training class last week and didn't get back too my problem. I tried it out and your equation worked to sum the last 5. I changed the last part from Column(B1:IV1)-1 to Column(B1:IV1)-3 and that summed the last 7. I don't understand why that worked and yours summed 5 cells. Thank you so much for the help!!!! "Biff" wrote: Hi! There's a difference in the two segments: The first set is of 7 cells (but not 7 numbers) and the next set you want the last 7 numbers. Try this: Entered as an array using the key combination of CTRL,SHIFT,ENTER (not just ENTER): =IF(COUNT(B1:IV1)<7,SUM(B1:IV1),SUM(IV1:INDEX(B1:I V1,LARGE(IF(B1:IV1<"",COLUMN(B1:IV1)-1),7)))) If there are less than 7 entries all will be summed, otherwise only the last 7 entries will be summed. Biff "not an excel guru" <not an excel wrote in message ... I have a continually growing row of data that I want to sum automatically. An example is: I want to store the sum in cell A1, data is currently in cell B1, C1, E1, F1, and H1. B1=2, C1=3, E1=1, F1=4, H1=2. I want the result in A1 to = 12. The next day I add data to cells I1, J1, K1, and M1, where I1=2, J1=3, K1=2, M1=5. After adding the new data, I want the result in A1 = E1+F1+H1+I1+J1+K1+M1 = 19. I found the following equation in one of the discussion threads for this scenario, but I noticed it doesn't add up correctly. Is there a way to do do this? Any help would be appreciated! Found equation: =SUM(OFFSET(B1,,COUNTA(B1:CO1),,-(MIN(COUNTA(B1:CO1),7)))) |
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