-21.77% is the change from 868 to 679
Calculation steps:
[( 679 - 868 ) ÷ 868] x 100 = -21.77%
Formula
Percentage change = [(679 - 868) / 868] x 100
Subtract the new number by the original number
679 - 868 = -189
-189 ÷ 868 = -0.21774193548387097
-0.21774193548387097 x 100 = -21.77%