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Math Help - Have the answer... need the problem?

  1. #1
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    Have the answer... need the problem?

    Hello everyone.
    I have been asked by my boss to work something out??? After an hour, I give up and now defer to you all as the experts and would appreciate assistance.

    I have a number - 490 times it by what % to get 345.1264780123p

    Basically, the cost for something is 345.1264780123 pence / cents (number to 11 decimal places). We need to know what percentage the original price would be times by what percentage to get to that cost. If I have that calculation, I can take a price list and use the formula to work out what what percentage is taken off to get the cost.

    Thanks for ANY help!
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  2. #2
    Senior Member
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    Re: Have the answer... need the problem?

    490x=345.126..

    x=\frac{345.126...}{490}=0.70433

    If you want it as a percentage that's about 70.4%
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