-11.24% is the change from 863 to 766
Calculation steps:
[( 766 - 863 ) ÷ 863] x 100 = -11.24%
Formula
Percentage change = [(766 - 863) / 863] x 100
Subtract the new number by the original number
766 - 863 = -97
-97 ÷ 863 = -0.11239860950173812
-0.11239860950173812 x 100 = -11.24%