-1.82% is the change from 879 to 863
Calculation steps:
[( 863 - 879 ) ÷ 879] x 100 = -1.82%
Formula
Percentage change = [(863 - 879) / 879] x 100
Subtract the new number by the original number
863 - 879 = -16
-16 ÷ 879 = -0.01820250284414107
-0.01820250284414107 x 100 = -1.82%