-82.03% is the change from 879 to 158
Calculation steps:
[( 158 - 879 ) ÷ 879] x 100 = -82.03%
Formula
Percentage change = [(158 - 879) / 879] x 100
Subtract the new number by the original number
158 - 879 = -721
-721 ÷ 879 = -0.820250284414107
-0.820250284414107 x 100 = -82.03%