42.73% is the change from 571 to 815
Calculation steps:
[( 815 - 571 ) ÷ 571] x 100 = 42.73%
Formula
Percentage change = [(815 - 571) / 571] x 100
Subtract the new number by the original number
815 - 571 = 244
244 ÷ 571 = 0.4273204903677758
0.4273204903677758 x 100 = 42.73%