-89.98% is the change from 868 to 87
Calculation steps:
[( 87 - 868 ) ÷ 868] x 100 = -89.98%
Formula
Percentage change = [(87 - 868) / 868] x 100
Subtract the new number by the original number
87 - 868 = -781
-781 ÷ 868 = -0.8997695852534562
-0.8997695852534562 x 100 = -89.98%