-53.32% is the change from 512 to 239
Calculation steps:
[( 239 - 512 ) ÷ 512] x 100 = -53.32%
Formula
Percentage change = [(239 - 512) / 512] x 100
Subtract the new number by the original number
239 - 512 = -273
-273 ÷ 512 = -0.533203125
-0.533203125 x 100 = -53.32%