-12.64% is the change from 878 to 767
Calculation steps:
[( 767 - 878 ) ÷ 878] x 100 = -12.64%
Formula
Percentage change = [(767 - 878) / 878] x 100
Subtract the new number by the original number
767 - 878 = -111
-111 ÷ 878 = -0.1264236902050114
-0.1264236902050114 x 100 = -12.64%