41.37% is the change from 394 to 557
Calculation steps:
[( 557 - 394 ) ÷ 394] x 100 = 41.37%
Formula
Percentage change = [(557 - 394) / 394] x 100
Subtract the new number by the original number
557 - 394 = 163
163 ÷ 394 = 0.4137055837563452
0.4137055837563452 x 100 = 41.37%