-80.65% is the change from 279 to 54
Calculation steps:
[( 54 - 279 ) ÷ 279] x 100 = -80.65%
Formula
Percentage change = [(54 - 279) / 279] x 100
Subtract the new number by the original number
54 - 279 = -225
-225 ÷ 279 = -0.8064516129032258
-0.8064516129032258 x 100 = -80.65%