-81.22% is the change from 916 to 172
Calculation steps:
[( 172 - 916 ) ÷ 916] x 100 = -81.22%
Formula
Percentage change = [(172 - 916) / 916] x 100
Subtract the new number by the original number
172 - 916 = -744
-744 ÷ 916 = -0.8122270742358079
-0.8122270742358079 x 100 = -81.22%