percent decrease of price

Question

The original price of a shirt was $20. It was decreased to $15 . What is the percent decrease of the price of this shirt.

Answer 1

First, we take original price minus the decreased price to give us the discount amount.

$20-$15=$5

Then we take the discount amount over the original price to give us the percent discount.

$5/$20=.25

Convert the decimal to a percentage by moving the decimal point two places to the right and adding the percent sign to get 25%