Averages / Floating averages
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Thread: Averages / Floating averages

  1. #1
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    How do I format a cell to average the last 12 entries. So that I can have a monthly average for the the last 12 months. I enter new data in the next cell for the previous month. At this time I have to change the formula every month. Is there a way to have the cell range change automaticly when I enter a new month?

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    What I do is set up separate sheets:
    Sheet 1 contains the data entry without average formulas.

    Sheet 2 contains a table that calculates the 12 month floating average.

    Sheet 3 contains the finished report with the floating averages. It uses lookup formulas to populate data fields and floating averages by referencing tables 1 and 2.

    Hope this helps
    Dexter

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    =AVERAGE(OFFSET($A$1,MATCH(9.99999999999999E+307,A:A)-12,,12))

    will average the last 12 cells in column A.

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