11.4% is the change from 500 to 557
Calculation steps:
[( 557 - 500 ) ÷ 500] x 100 = 11.4%
Formula
Percentage change = [(557 - 500) / 500] x 100
Subtract the new number by the original number
557 - 500 = 57
57 ÷ 500 = 0.114
0.114 x 100 = 11.4%
Example