An electronic device that previously sold for$21 has beenreduced to$17.43.?

Question

the price reduction, rounded to the nearest whole percent is?

Answer 1

$17.43/$21.00 = 83%

$17.43 is 83% of $21.00, therefore the reduction in price was 17%.

To check answer, multiply $21.00 by 17%.

$21.00(.17) = $3.57

$21.00 minus $3.57 = $17.43