-81.45% is the change from 523 to 97
Calculation steps:
[( 97 - 523 ) ÷ 523] x 100 = -81.45%
Formula
Percentage change = [(97 - 523) / 523] x 100
Subtract the new number by the original number
97 - 523 = -426
-426 ÷ 523 = -0.8145315487571702
-0.8145315487571702 x 100 = -81.45%