-81.74% is the change from 679 to 124
Calculation steps:
[( 124 - 679 ) ÷ 679] x 100 = -81.74%
Formula
Percentage change = [(124 - 679) / 679] x 100
Subtract the new number by the original number
124 - 679 = -555
-555 ÷ 679 = -0.8173784977908689
-0.8173784977908689 x 100 = -81.74%