-81.2% is the change from 532 to 100
Calculation steps:
[( 100 - 532 ) ÷ 532] x 100 = -81.2%
Formula
Percentage change = [(100 - 532) / 532] x 100
Subtract the new number by the original number
100 - 532 = -432
-432 ÷ 532 = -0.8120300751879699
-0.8120300751879699 x 100 = -81.2%