23.71% is the change from 502 to 621
Calculation steps:
[( 621 - 502 ) ÷ 502] x 100 = 23.71%
Formula
Percentage change = [(621 - 502) / 502] x 100
Subtract the new number by the original number
621 - 502 = 119
119 ÷ 502 = 0.23705179282868527
0.23705179282868527 x 100 = 23.71%