-81.59% is the change from 527 to 97
Calculation steps:
[( 97 - 527 ) ÷ 527] x 100 = -81.59%
Formula
Percentage change = [(97 - 527) / 527] x 100
Subtract the new number by the original number
97 - 527 = -430
-430 ÷ 527 = -0.8159392789373814
-0.8159392789373814 x 100 = -81.59%