31.57% is the change from 434 to 571
Calculation steps:
[( 571 - 434 ) ÷ 434] x 100 = 31.57%
Formula
Percentage change = [(571 - 434) / 434] x 100
Subtract the new number by the original number
571 - 434 = 137
137 ÷ 434 = 0.315668202764977
0.315668202764977 x 100 = 31.57%