11.73% is the change from 571 to 638
Calculation steps:
[( 638 - 571 ) ÷ 571] x 100 = 11.73%
Formula
Percentage change = [(638 - 571) / 571] x 100
Subtract the new number by the original number
638 - 571 = 67
67 ÷ 571 = 0.11733800350262696
0.11733800350262696 x 100 = 11.73%