-20.39% is the change from 878 to 699
Calculation steps:
[( 699 - 878 ) ÷ 878] x 100 = -20.39%
Formula
Percentage change = [(699 - 878) / 878] x 100
Subtract the new number by the original number
699 - 878 = -179
-179 ÷ 878 = -0.20387243735763097
-0.20387243735763097 x 100 = -20.39%