Question

During a sale, The price of a sweater was changed from $20 to $16. What was the percent of the decrease in the price of the sweater?
(Please show work:) )

Answer 1

$16/$20 = x%/100% (in a proportion)

Cross-multiply

1600 = 20x

Divide 1600 by 20

x = 80

80%/100%

Because you know the price decreased, you subtract 80 from 100 to find your answer

100 - 80 = 20% decrease in price

Hope this helps!