-70.87% is the change from 587 to 171
Calculation steps:
[( 171 - 587 ) ÷ 587] x 100 = -70.87%
Formula
Percentage change = [(171 - 587) / 587] x 100
Subtract the new number by the original number
171 - 587 = -416
-416 ÷ 587 = -0.7086882453151618
-0.7086882453151618 x 100 = -70.87%