48.1% is the change from 420 to 622
Calculation steps:
[( 622 - 420 ) ÷ 420] x 100 = 48.1%
Formula
Percentage change = [(622 - 420) / 420] x 100
Subtract the new number by the original number
622 - 420 = 202
202 ÷ 420 = 0.48095238095238096
0.48095238095238096 x 100 = 48.1%