33.13% is the change from 480 to 639
Calculation steps:
[( 639 - 480 ) ÷ 480] x 100 = 33.13%
Formula
Percentage change = [(639 - 480) / 480] x 100
Subtract the new number by the original number
639 - 480 = 159
159 ÷ 480 = 0.33125
0.33125 x 100 = 33.13%