-81.66% is the change from 529 to 97
Calculation steps:
[( 97 - 529 ) ÷ 529] x 100 = -81.66%
Formula
Percentage change = [(97 - 529) / 529] x 100
Subtract the new number by the original number
97 - 529 = -432
-432 ÷ 529 = -0.8166351606805293
-0.8166351606805293 x 100 = -81.66%