-81.52% is the change from 525 to 97
Calculation steps:
[( 97 - 525 ) ÷ 525] x 100 = -81.52%
Formula
Percentage change = [(97 - 525) / 525] x 100
Subtract the new number by the original number
97 - 525 = -428
-428 ÷ 525 = -0.8152380952380952
-0.8152380952380952 x 100 = -81.52%