5.56% is the change from 540 to 570
Calculation steps:
[( 570 - 540 ) ÷ 540] x 100 = 5.56%
Formula
Percentage change = [(570 - 540) / 540] x 100
Subtract the new number by the original number
570 - 540 = 30
30 ÷ 540 = 0.05555555555555555
0.05555555555555555 x 100 = 5.56%