Question

The number 77 is decreased to 16. What is the percentage by which the number was

decreased, to the nearest tenth of a percent?

Answer 1

79.2% (to the nearest tenth)

Explanation:

use the percent change formula:

PC = [ (difference between initial value and final value) ÷ initial value] x 100

= [(77-16) ÷77] x 100

= 79.22077922...

= 79.2% (to the nearest tenth)