-1.03% is the change from 878 to 869
Calculation steps:
[( 869 - 878 ) ÷ 878] x 100 = -1.03%
Formula
Percentage change = [(869 - 878) / 878] x 100
Subtract the new number by the original number
869 - 878 = -9
-9 ÷ 878 = -0.010250569476082005
-0.010250569476082005 x 100 = -1.03%