-19.35% is the change from 279 to 225
Calculation steps:
[( 225 - 279 ) ÷ 279] x 100 = -19.35%
Formula
Percentage change = [(225 - 279) / 279] x 100
Subtract the new number by the original number
225 - 279 = -54
-54 ÷ 279 = -0.1935483870967742
-0.1935483870967742 x 100 = -19.35%