What is the formula of Discount percent
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❥ The first step of the primary method is to use the formula S = p - rp, where S = sale price, r = discount percentage rate, and p = the original price. Using the alternative method, you look at the remaining percent of the price you'd be paying; for example, 90% is left if 10% is taken off.
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Answer:
S = P - rp ( S = Sale price , R = Discount percentage rate , P = Orignal price
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