-53.91% is the change from 499 to 230
Calculation steps:
[( 230 - 499 ) ÷ 499] x 100 = -53.91%
Formula
Percentage change = [(230 - 499) / 499] x 100
Subtract the new number by the original number
230 - 499 = -269
-269 ÷ 499 = -0.5390781563126252
-0.5390781563126252 x 100 = -53.91%