-81.94% is the change from 72 to 13
Calculation steps:
[( 13 - 72 ) ÷ 72] x 100 = -81.94%
Formula
Percentage change = [(13 - 72) / 72] x 100
Subtract the new number by the original number
13 - 72 = -59
-59 ÷ 72 = -0.8194444444444444
-0.8194444444444444 x 100 = -81.94%