-99.81% is the change from 529 to 1
Calculation steps:
[( 1 - 529 ) ÷ 529] x 100 = -99.81%
Formula
Percentage change = [(1 - 529) / 529] x 100
Subtract the new number by the original number
1 - 529 = -528
-528 ÷ 529 = -0.998109640831758
-0.998109640831758 x 100 = -99.81%