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Math Help - Discount percentage and percent increase

  1. #1
    Newbie
    Joined
    Feb 2011
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    Discount percentage and percent increase

    If a product is $100 and I purchase it at 15% discount, I pay $85. How do I calculate if I want to resell that same product for 30% more than I paid for it? Not 30% above the original price before my discount.

    Original price * 0.15 = Discounted amount
    Original price - Discount amount = Amount that I pay
    Amount that I pay * 0.30 = Amount to increase
    Amount that I pay + Amount to increase = Cost to customer ?

    Or is this *way* off...?

    From this formula..
    100 * 0.15 = 15
    100 - 15 = 85
    85 * 0.30 = 25.5
    85 + 25.5 = 110.5


    Thanks
    LM
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  2. #2
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    e^(i*pi)'s Avatar
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    Looks good to me.
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