39.09% is the change from 394 to 548
Calculation steps:
[( 548 - 394 ) ÷ 394] x 100 = 39.09%
Formula
Percentage change = [(548 - 394) / 394] x 100
Subtract the new number by the original number
548 - 394 = 154
154 ÷ 394 = 0.39086294416243655
0.39086294416243655 x 100 = 39.09%