-14.34% is the change from 279 to 239
Calculation steps:
[( 239 - 279 ) ÷ 279] x 100 = -14.34%
Formula
Percentage change = [(239 - 279) / 279] x 100
Subtract the new number by the original number
239 - 279 = -40
-40 ÷ 279 = -0.14336917562724014
-0.14336917562724014 x 100 = -14.34%