## Basic College Mathematics (9th Edition)

Now, amount of discount = rate (or percent) of discount $\times$ original price i.e. Amount of discount = 30 % $\times$ 112.5 = 0.30 \times 112.5 (multiply by 100 to percent) = 33.75 Now, sale price = original price – amount of discount Sale Price = 112.5 - 33.75 = 78.75