-23.17% is the change from 863 to 663
Calculation steps:
[( 663 - 863 ) ÷ 863] x 100 = -23.17%
Formula
Percentage change = [(663 - 863) / 863] x 100
Subtract the new number by the original number
663 - 863 = -200
-200 ÷ 863 = -0.23174971031286212
-0.23174971031286212 x 100 = -23.17%