-81.39% is the change from 532 to 99
Calculation steps:
[( 99 - 532 ) ÷ 532] x 100 = -81.39%
Formula
Percentage change = [(99 - 532) / 532] x 100
Subtract the new number by the original number
99 - 532 = -433
-433 ÷ 532 = -0.8139097744360902
-0.8139097744360902 x 100 = -81.39%