-53.13% is the change from 480 to 225
Calculation steps:
[( 225 - 480 ) ÷ 480] x 100 = -53.13%
Formula
Percentage change = [(225 - 480) / 480] x 100
Subtract the new number by the original number
225 - 480 = -255
-255 ÷ 480 = -0.53125
-0.53125 x 100 = -53.13%