-22.64% is the change from 879 to 680
Calculation steps:
[( 680 - 879 ) ÷ 879] x 100 = -22.64%
Formula
Percentage change = [(680 - 879) / 879] x 100
Subtract the new number by the original number
680 - 879 = -199
-199 ÷ 879 = -0.22639362912400454
-0.22639362912400454 x 100 = -22.64%