-31.02% is the change from 548 to 378
Calculation steps:
[( 378 - 548 ) ÷ 548] x 100 = -31.02%
Formula
Percentage change = [(378 - 548) / 548] x 100
Subtract the new number by the original number
378 - 548 = -170
-170 ÷ 548 = -0.3102189781021898
-0.3102189781021898 x 100 = -31.02%