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    Ravmasta's Avatar
    Ravmasta Posts: 1, Reputation: 1
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    #1

    May 15, 2007, 10:14 AM
    Percentage error and difference
    How do you generally calculate the percentage error?

    How do you generally calculate the percentage difference?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    May 15, 2007, 02:34 PM
    For percentage error see:

    Mean absolute percentage error - Wikipedia, the free encyclopedia

    For percentage difference - it's the difference between two numbers divided by the original number. Thus if you start with a value A, the percentage difference between A and B is 100*(B-A)/A.
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