-13.6% is the change from 500 to 432
Calculation steps:
[( 432 - 500 ) ÷ 500] x 100 = -13.6%
Formula
Percentage change = [(432 - 500) / 500] x 100
Subtract the new number by the original number
432 - 500 = -68
-68 ÷ 500 = -0.136
-0.136 x 100 = -13.6%