-80.9% is the change from 199 to 38
Calculation steps:
[( 38 - 199 ) ÷ 199] x 100 = -80.9%
Formula
Percentage change = [(38 - 199) / 199] x 100
Subtract the new number by the original number
38 - 199 = -161
-161 ÷ 199 = -0.8090452261306532
-0.8090452261306532 x 100 = -80.9%