-81.42% is the change from 522 to 97
Calculation steps:
[( 97 - 522 ) ÷ 522] x 100 = -81.42%
Formula
Percentage change = [(97 - 522) / 522] x 100
Subtract the new number by the original number
97 - 522 = -425
-425 ÷ 522 = -0.814176245210728
-0.814176245210728 x 100 = -81.42%