-70.16% is the change from 868 to 259
Calculation steps:
[( 259 - 868 ) ÷ 868] x 100 = -70.16%
Formula
Percentage change = [(259 - 868) / 868] x 100
Subtract the new number by the original number
259 - 868 = -609
-609 ÷ 868 = -0.7016129032258065
-0.7016129032258065 x 100 = -70.16%