34.57% is the change from 538 to 724
Calculation steps:
[( 724 - 538 ) ÷ 538] x 100 = 34.57%
Formula
Percentage change = [(724 - 538) / 538] x 100
Subtract the new number by the original number
724 - 538 = 186
186 ÷ 538 = 0.34572490706319703
0.34572490706319703 x 100 = 34.57%