-1.93% is the change from 879 to 862
Calculation steps:
[( 862 - 879 ) ÷ 879] x 100 = -1.93%
Formula
Percentage change = [(862 - 879) / 879] x 100
Subtract the new number by the original number
862 - 879 = -17
-17 ÷ 879 = -0.019340159271899887
-0.019340159271899887 x 100 = -1.93%