50.13% is the change from 371 to 557
Calculation steps:
[( 557 - 371 ) ÷ 371] x 100 = 50.13%
Formula
Percentage change = [(557 - 371) / 371] x 100
Subtract the new number by the original number
557 - 371 = 186
186 ÷ 371 = 0.5013477088948787
0.5013477088948787 x 100 = 50.13%