-22.18% is the change from 879 to 684
Calculation steps:
[( 684 - 879 ) ÷ 879] x 100 = -22.18%
Formula
Percentage change = [(684 - 879) / 879] x 100
Subtract the new number by the original number
684 - 879 = -195
-195 ÷ 879 = -0.22184300341296928
-0.22184300341296928 x 100 = -22.18%