21.5% is the change from 507 to 616
Calculation steps:
[( 616 - 507 ) ÷ 507] x 100 = 21.5%
Formula
Percentage change = [(616 - 507) / 507] x 100
Subtract the new number by the original number
616 - 507 = 109
109 ÷ 507 = 0.21499013806706113
0.21499013806706113 x 100 = 21.5%