How do I continue to take the sum of the last 50 non-zero numbers?

[radiotower]

Each day, I put a large number in one column and 0 in the other. I need to be able to take the sum of the last 50 non-zero numbers for each column. The cell after that should take the sum of the 2nd-51st numbers (excluding 0s), then the next cell should take the sum of the 3rd-52nd numbers (excluding 0s), etc.

My issue is, when I move to the 51st non-zero number in a column, I do not know how to exclude the 1st non-zero number in the same column.

Cross posts: http://www.mrexcel.com/forum/excel-q...o-numbers.html
http://www.msofficeforums.com/excel/...-sum-last.html

[Pete_UK]

There are no dates in your file. Is the latest set of numbers always at the bottom of the list, or do you insert a new row 1 and put the latest at the top?

Pete

[AliGW]

Your post does not comply with Rule 8 of our Forum RULES. Do not crosspost your question on multiple forums without including links here to the other threads on other forums.

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[radiotower]

There are no dates in your file. Is the latest set of numbers always at the bottom of the list, or do you insert a new row 1 and put the latest at the top?

Pete

I figured it out.