-79.57% is the change from 279 to 57
Calculation steps:
[( 57 - 279 ) ÷ 279] x 100 = -79.57%
Formula
Percentage change = [(57 - 279) / 279] x 100
Subtract the new number by the original number
57 - 279 = -222
-222 ÷ 279 = -0.7956989247311828
-0.7956989247311828 x 100 = -79.57%