Question

A video game system originally costs $450 and is on sale for $315. The price was decreased by what percent?

Answer 1

30 percent

(315 - 450)/450

x 100% = 30%

Answer 2

70%

Explanation:

To find the decrease:

original/current

450/315 = .7

Now multiply .7 by 100 to get a percent

.7 * 100 - 70%

450 * .7 = 315

70% is the answer!