6.1% is the change from 525 to 557
Calculation steps:
[( 557 - 525 ) ÷ 525] x 100 = 6.1%
Formula
Percentage change = [(557 - 525) / 525] x 100
Subtract the new number by the original number
557 - 525 = 32
32 ÷ 525 = 0.06095238095238095
0.06095238095238095 x 100 = 6.1%