-97.54% is the change from 529 to 13
Calculation steps:
[( 13 - 529 ) ÷ 529] x 100 = -97.54%
Formula
Percentage change = [(13 - 529) / 529] x 100
Subtract the new number by the original number
13 - 529 = -516
-516 ÷ 529 = -0.9754253308128544
-0.9754253308128544 x 100 = -97.54%