20.47% is the change from 557 to 671
Calculation steps:
[( 671 - 557 ) ÷ 557] x 100 = 20.47%
Formula
Percentage change = [(671 - 557) / 557] x 100
Subtract the new number by the original number
671 - 557 = 114
114 ÷ 557 = 0.20466786355475763
0.20466786355475763 x 100 = 20.47%