30.46% is the change from 476 to 621
Calculation steps:
[( 621 - 476 ) ÷ 476] x 100 = 30.46%
Formula
Percentage change = [(621 - 476) / 476] x 100
Subtract the new number by the original number
621 - 476 = 145
145 ÷ 476 = 0.30462184873949577
0.30462184873949577 x 100 = 30.46%