-86.4% is the change from 522 to 71
Calculation steps:
[( 71 - 522 ) ÷ 522] x 100 = -86.4%
Formula
Percentage change = [(71 - 522) / 522] x 100
Subtract the new number by the original number
71 - 522 = -451
-451 ÷ 522 = -0.8639846743295019
-0.8639846743295019 x 100 = -86.4%