-85.89% is the change from 879 to 124
Calculation steps:
[( 124 - 879 ) ÷ 879] x 100 = -85.89%
Formula
Percentage change = [(124 - 879) / 879] x 100
Subtract the new number by the original number
124 - 879 = -755
-755 ÷ 879 = -0.8589306029579067
-0.8589306029579067 x 100 = -85.89%