-10.02% is the change from 878 to 790
Calculation steps:
[( 790 - 878 ) ÷ 878] x 100 = -10.02%
Formula
Percentage change = [(790 - 878) / 878] x 100
Subtract the new number by the original number
790 - 878 = -88
-88 ÷ 878 = -0.10022779043280182
-0.10022779043280182 x 100 = -10.02%