-11.05% is the change from 878 to 781
Calculation steps:
[( 781 - 878 ) ÷ 878] x 100 = -11.05%
Formula
Percentage change = [(781 - 878) / 878] x 100
Subtract the new number by the original number
781 - 878 = -97
-97 ÷ 878 = -0.11047835990888383
-0.11047835990888383 x 100 = -11.05%