-52.08% is the change from 480 to 230
Calculation steps:
[( 230 - 480 ) ÷ 480] x 100 = -52.08%
Formula
Percentage change = [(230 - 480) / 480] x 100
Subtract the new number by the original number
230 - 480 = -250
-250 ÷ 480 = -0.5208333333333334
-0.5208333333333334 x 100 = -52.08%