-49.1% is the change from 279 to 142
Calculation steps:
[( 142 - 279 ) ÷ 279] x 100 = -49.1%
Formula
Percentage change = [(142 - 279) / 279] x 100
Subtract the new number by the original number
142 - 279 = -137
-137 ÷ 279 = -0.4910394265232975
-0.4910394265232975 x 100 = -49.1%