-81.17% is the change from 908 to 171
Calculation steps:
[( 171 - 908 ) ÷ 908] x 100 = -81.17%
Formula
Percentage change = [(171 - 908) / 908] x 100
Subtract the new number by the original number
171 - 908 = -737
-737 ÷ 908 = -0.8116740088105727
-0.8116740088105727 x 100 = -81.17%