-8.86% is the change from 79 to 72
Calculation steps:
[( 72 - 79 ) ÷ 79] x 100 = -8.86%
Formula
Percentage change = [(72 - 79) / 79] x 100
Subtract the new number by the original number
72 - 79 = -7
-7 ÷ 79 = -0.08860759493670886
-0.08860759493670886 x 100 = -8.86%