-23.04% is the change from 868 to 668
Calculation steps:
[( 668 - 868 ) ÷ 868] x 100 = -23.04%
Formula
Percentage change = [(668 - 868) / 868] x 100
Subtract the new number by the original number
668 - 868 = -200
-200 ÷ 868 = -0.2304147465437788
-0.2304147465437788 x 100 = -23.04%