6.15% is the change from 537 to 570
Calculation steps:
[( 570 - 537 ) ÷ 537] x 100 = 6.15%
Formula
Percentage change = [(570 - 537) / 537] x 100
Subtract the new number by the original number
570 - 537 = 33
33 ÷ 537 = 0.061452513966480445
0.061452513966480445 x 100 = 6.15%