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SUM INDEX HELP - calc data using number of months remaining

  1. #1
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    SUM INDEX HELP - calc data using number of months remaining

    Hi,

    Help needed please. I need to calculate the total data remaining in the year dependant on a month entered. e.g. June-13 entered means 6 months remaining so require the total by "Option" (see attached) for the remaining 6 months.

    I have added a basic view of this in the attached. A data file and sumary page. I have tried a SUM INdex but am struggling.

    Help much appreciated.
    Attached Files Attached Files
    Last edited by scooterboygnu1; 06-06-2013 at 06:27 AM. Reason: SOLVED

  2. #2
    Forum Expert Fotis1991's Avatar
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    Re: SUM INDEX HELP - calc data using number of months remaining

    Try in B6 and copy down.

    =SUMPRODUCT((Data!$A$3:$A$7=A6)*(Data!$C$2:$N$2>$C$1)*(Data!$C$3:$N$7))
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  3. #3
    Forum Expert Fotis1991's Avatar
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    Re: SUM INDEX HELP - calc data using number of months remaining

    .................

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