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Math Help - calculating percentages

  1. #1
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    calculating percentages

    How do I figure the percentage between 522 and 549? I know the difference is 27, but what is the percentage between 522 and 549? In other words, if I made 522 dollars one week, then 549 the next week, what is the percentage difference, or increase I guess, that I made?
    Thanks.
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  2. #2
    Member integral's Avatar
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    Dec 2009
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    calculate the difference:

    549-522=27

    divide by original value:
    \frac{27}{522}=5.17(10)^{-2}

    multiply by 100.

    5.17(10)^{-2}(100)=5.17<br />

    5.17%
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  3. #3
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    Thanks

    Thank you for the answer.
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