-9.97% is the change from 863 to 777
Calculation steps:
[( 777 - 863 ) ÷ 863] x 100 = -9.97%
Formula
Percentage change = [(777 - 863) / 863] x 100
Subtract the new number by the original number
777 - 863 = -86
-86 ÷ 863 = -0.0996523754345307
-0.0996523754345307 x 100 = -9.97%