-11.25% is the change from 480 to 426
Calculation steps:
[( 426 - 480 ) ÷ 480] x 100 = -11.25%
Formula
Percentage change = [(426 - 480) / 480] x 100
Subtract the new number by the original number
426 - 480 = -54
-54 ÷ 480 = -0.1125
-0.1125 x 100 = -11.25%