-28.28% is the change from 548 to 393
Calculation steps:
[( 393 - 548 ) ÷ 548] x 100 = -28.28%
Formula
Percentage change = [(393 - 548) / 548] x 100
Subtract the new number by the original number
393 - 548 = -155
-155 ÷ 548 = -0.28284671532846717
-0.28284671532846717 x 100 = -28.28%