50.27% is the change from 557 to 837
Calculation steps:
[( 837 - 557 ) ÷ 557] x 100 = 50.27%
Formula
Percentage change = [(837 - 557) / 557] x 100
Subtract the new number by the original number
837 - 557 = 280
280 ÷ 557 = 0.5026929982046678
0.5026929982046678 x 100 = 50.27%