-54.9% is the change from 439 to 198
Calculation steps:
[( 198 - 439 ) ÷ 439] x 100 = -54.9%
Formula
Percentage change = [(198 - 439) / 439] x 100
Subtract the new number by the original number
198 - 439 = -241
-241 ÷ 439 = -0.5489749430523918
-0.5489749430523918 x 100 = -54.9%