-95.32% is the change from 171 to 8
Calculation steps:
[( 8 - 171 ) ÷ 171] x 100 = -95.32%
Formula
Percentage change = [(8 - 171) / 171] x 100
Subtract the new number by the original number
8 - 171 = -163
-163 ÷ 171 = -0.9532163742690059
-0.9532163742690059 x 100 = -95.32%