23.16% is the change from 557 to 686
Calculation steps:
[( 686 - 557 ) ÷ 557] x 100 = 23.16%
Formula
Percentage change = [(686 - 557) / 557] x 100
Subtract the new number by the original number
686 - 557 = 129
129 ÷ 557 = 0.23159784560143626
0.23159784560143626 x 100 = 23.16%