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Weighted Average Formula Assistance

  1. #1
    Registered User
    Join Date
    04-20-2010
    Location
    Denver, CO
    MS-Off Ver
    Excel 2003
    Posts
    4

    Weighted Average Formula Assistance

    I am needing a formula to determine the exact % to volume for a set of data. I have three different functions with varied volumes and error rates. I need the true % to total volume for each group to truly determine which function has the highest error rate.

    Example:
    Volume # Errors Error Rate
    Process 1 5000 400
    Process 2 500 75
    Process 3 875 250
    TOTAL 6375 725

    My error rate needs to be the true error rate to total volume.
    Last edited by kwilliams5675; 12-16-2010 at 01:59 PM.

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