-55.91% is the change from 279 to 123
Calculation steps:
[( 123 - 279 ) ÷ 279] x 100 = -55.91%
Formula
Percentage change = [(123 - 279) / 279] x 100
Subtract the new number by the original number
123 - 279 = -156
-156 ÷ 279 = -0.5591397849462365
-0.5591397849462365 x 100 = -55.91%