30.25% is the change from 476 to 620
Calculation steps:
[( 620 - 476 ) ÷ 476] x 100 = 30.25%
Formula
Percentage change = [(620 - 476) / 476] x 100
Subtract the new number by the original number
620 - 476 = 144
144 ÷ 476 = 0.3025210084033613
0.3025210084033613 x 100 = 30.25%