-18.09% is the change from 199 to 163
Calculation steps:
[( 163 - 199 ) ÷ 199] x 100 = -18.09%
Formula
Percentage change = [(163 - 199) / 199] x 100
Subtract the new number by the original number
163 - 199 = -36
-36 ÷ 199 = -0.18090452261306533
-0.18090452261306533 x 100 = -18.09%