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Old 01-06-2014, 01:31 AM
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Pecoflyer Pecoflyer is offline Windows 7 64bit Office 2010 64bit
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Hi
supposing all your values are contiguous and of course numbers, the following will give the sum of the last 8 cells
Code:
=SUM(INDEX(A:A,COUNTA(A:A)):INDEX(A:A,COUNTA(A:A)-7))
The part after the SUM function defines a range comprising the 8 last values.In fact many XL users forget that INDEX returns a reference to a cell when used in another formula. That is what we are taking advantage of here

If you have any other requirements perhaps post a sample sheet on the forum please . Thx
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