-21.16% is the change from 879 to 693
Calculation steps:
[( 693 - 879 ) ÷ 879] x 100 = -21.16%
Formula
Percentage change = [(693 - 879) / 879] x 100
Subtract the new number by the original number
693 - 879 = -186
-186 ÷ 879 = -0.21160409556313994
-0.21160409556313994 x 100 = -21.16%