-10.27% is the change from 867 to 778
Calculation steps:
[( 778 - 867 ) ÷ 867] x 100 = -10.27%
Formula
Percentage change = [(778 - 867) / 867] x 100
Subtract the new number by the original number
778 - 867 = -89
-89 ÷ 867 = -0.10265282583621683
-0.10265282583621683 x 100 = -10.27%