12.57% is the change from 724 to 815
Calculation steps:
[( 815 - 724 ) ÷ 724] x 100 = 12.57%
Formula
Percentage change = [(815 - 724) / 724] x 100
Subtract the new number by the original number
815 - 724 = 91
91 ÷ 724 = 0.12569060773480664
0.12569060773480664 x 100 = 12.57%