30.68% is the change from 502 to 656
Calculation steps:
[( 656 - 502 ) ÷ 502] x 100 = 30.68%
Formula
Percentage change = [(656 - 502) / 502] x 100
Subtract the new number by the original number
656 - 502 = 154
154 ÷ 502 = 0.30677290836653387
0.30677290836653387 x 100 = 30.68%