-48.97% is the change from 388 to 198
Calculation steps:
[( 198 - 388 ) ÷ 388] x 100 = -48.97%
Formula
Percentage change = [(198 - 388) / 388] x 100
Subtract the new number by the original number
198 - 388 = -190
-190 ÷ 388 = -0.4896907216494845
-0.4896907216494845 x 100 = -48.97%