40.2% is the change from 199 to 279
Calculation steps:
[( 279 - 199 ) ÷ 199] x 100 = 40.2%
Formula
Percentage change = [(279 - 199) / 199] x 100
Subtract the new number by the original number
279 - 199 = 80
80 ÷ 199 = 0.4020100502512563
0.4020100502512563 x 100 = 40.2%