## a book normally costs \$21.50. today it was on sale for 15.05. what percentage discount was offered during the sale?

Question

a book normally costs \$21.50. today it was on sale for 15.05. what percentage discount was offered during the sale?

0

## Answers ( No )

1. To find the discount %, we must use the equation below.

Discounted Price / Original Price = 1 – Discount %

15.05 / 21.5 = 1 – Discount %

Subtract 15.05 / 21.5 from both sides and add Discount % to both sides to get the following equation.

Discount % = 1 – 15.05 / 21.5 = 1 – 0.7 = 0.3 = 30% discounted
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