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Math Help - Contributing values for weighted average

  1. #1
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    Contributing values for weighted average

    How can I tell the contributing value for each portion of a weighted average?

    For example if I have a set of values each with a weight I would multiply each of those values by its weight, total them and then divide by the total of the weights.

    How can I determine what each individual value contributed to the final total?

    (this is ultimately a programming problem so even a somewhat complex solution is OK - or if you know how to show it in C or VB that is fine too)

    Thank you!
    Last edited by combatvolcano; August 4th 2011 at 11:59 AM.
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