-28.67% is the change from 279 to 199
Calculation steps:
[( 199 - 279 ) ÷ 279] x 100 = -28.67%
Formula
Percentage change = [(199 - 279) / 279] x 100
Subtract the new number by the original number
199 - 279 = -80
-80 ÷ 279 = -0.2867383512544803
-0.2867383512544803 x 100 = -28.67%