9.16% is the change from 557 to 608
Calculation steps:
[( 608 - 557 ) ÷ 557] x 100 = 9.16%
Formula
Percentage change = [(608 - 557) / 557] x 100
Subtract the new number by the original number
608 - 557 = 51
51 ÷ 557 = 0.09156193895870736
0.09156193895870736 x 100 = 9.16%