-52.39% is the change from 502 to 239
Calculation steps:
[( 239 - 502 ) ÷ 502] x 100 = -52.39%
Formula
Percentage change = [(239 - 502) / 502] x 100
Subtract the new number by the original number
239 - 502 = -263
-263 ÷ 502 = -0.5239043824701195
-0.5239043824701195 x 100 = -52.39%