-51.01% is the change from 398 to 195
Calculation steps:
[( 195 - 398 ) ÷ 398] x 100 = -51.01%
Formula
Percentage change = [(195 - 398) / 398] x 100
Subtract the new number by the original number
195 - 398 = -203
-203 ÷ 398 = -0.5100502512562815
-0.5100502512562815 x 100 = -51.01%