-85.67% is the change from 879 to 126
Calculation steps:
[( 126 - 879 ) ÷ 879] x 100 = -85.67%
Formula
Percentage change = [(126 - 879) / 879] x 100
Subtract the new number by the original number
126 - 879 = -753
-753 ÷ 879 = -0.856655290102389
-0.856655290102389 x 100 = -85.67%