-25.35% is the change from 868 to 648
Calculation steps:
[( 648 - 868 ) ÷ 868] x 100 = -25.35%
Formula
Percentage change = [(648 - 868) / 868] x 100
Subtract the new number by the original number
648 - 868 = -220
-220 ÷ 868 = -0.2534562211981567
-0.2534562211981567 x 100 = -25.35%