48.33% is the change from 420 to 623
Calculation steps:
[( 623 - 420 ) ÷ 420] x 100 = 48.33%
Formula
Percentage change = [(623 - 420) / 420] x 100
Subtract the new number by the original number
623 - 420 = 203
203 ÷ 420 = 0.48333333333333334
0.48333333333333334 x 100 = 48.33%