-19.85% is the change from 539 to 432
Calculation steps:
[( 432 - 539 ) ÷ 539] x 100 = -19.85%
Formula
Percentage change = [(432 - 539) / 539] x 100
Subtract the new number by the original number
432 - 539 = -107
-107 ÷ 539 = -0.19851576994434136
-0.19851576994434136 x 100 = -19.85%