-53.98% is the change from 502 to 231
Calculation steps:
[( 231 - 502 ) ÷ 502] x 100 = -53.98%
Formula
Percentage change = [(231 - 502) / 502] x 100
Subtract the new number by the original number
231 - 502 = -271
-271 ÷ 502 = -0.5398406374501992
-0.5398406374501992 x 100 = -53.98%