30.83% is the change from 480 to 628
Calculation steps:
[( 628 - 480 ) ÷ 480] x 100 = 30.83%
Formula
Percentage change = [(628 - 480) / 480] x 100
Subtract the new number by the original number
628 - 480 = 148
148 ÷ 480 = 0.30833333333333335
0.30833333333333335 x 100 = 30.83%