29.38% is the change from 480 to 621
Calculation steps:
[( 621 - 480 ) ÷ 480] x 100 = 29.38%
Formula
Percentage change = [(621 - 480) / 480] x 100
Subtract the new number by the original number
621 - 480 = 141
141 ÷ 480 = 0.29375
0.29375 x 100 = 29.38%