Question

A sweater originally costing $80 is now on sale for $60. determine the percent decrease.30% %

Answer 1

Let x = discount rate
Equate:
$80(1-x) = $60
Solve for x:
1-x = 60/80
1-x = 3/4
x = 1 - 3/4
x = 1/4 or 0.25
x = 25%