-21.32% is the change from 863 to 679
Calculation steps:
[( 679 - 863 ) ÷ 863] x 100 = -21.32%
Formula
Percentage change = [(679 - 863) / 863] x 100
Subtract the new number by the original number
679 - 863 = -184
-184 ÷ 863 = -0.21320973348783315
-0.21320973348783315 x 100 = -21.32%