-11.16% is the change from 878 to 780
Calculation steps:
[( 780 - 878 ) ÷ 878] x 100 = -11.16%
Formula
Percentage change = [(780 - 878) / 878] x 100
Subtract the new number by the original number
780 - 878 = -98
-98 ÷ 878 = -0.11161731207289294
-0.11161731207289294 x 100 = -11.16%