-28.1% is the change from 548 to 394
Calculation steps:
[( 394 - 548 ) ÷ 548] x 100 = -28.1%
Formula
Percentage change = [(394 - 548) / 548] x 100
Subtract the new number by the original number
394 - 548 = -154
-154 ÷ 548 = -0.28102189781021897
-0.28102189781021897 x 100 = -28.1%