-51.25% is the change from 480 to 234
Calculation steps:
[( 234 - 480 ) ÷ 480] x 100 = -51.25%
Formula
Percentage change = [(234 - 480) / 480] x 100
Subtract the new number by the original number
234 - 480 = -246
-246 ÷ 480 = -0.5125
-0.5125 x 100 = -51.25%