Question

A customer pays $18 for a DVD that originally costs $20. What is the percent decrease in the cost of the DVD?

Answer 1

= 10 percent decrease

Explanation:

Percent decrease = (original - new)/original * 100 percent

The original price was 20 and the new price is 18

= (20-18)/20 * 100 percent

=2/20 * 100 percent

= 1/10 * 100 percent

= 10 percent decrease