-86.55% is the change from 528 to 71
Calculation steps:
[( 71 - 528 ) ÷ 528] x 100 = -86.55%
Formula
Percentage change = [(71 - 528) / 528] x 100
Subtract the new number by the original number
71 - 528 = -457
-457 ÷ 528 = -0.865530303030303
-0.865530303030303 x 100 = -86.55%