-89.88% is the change from 860 to 87
Calculation steps:
[( 87 - 860 ) ÷ 860] x 100 = -89.88%
Formula
Percentage change = [(87 - 860) / 860] x 100
Subtract the new number by the original number
87 - 860 = -773
-773 ÷ 860 = -0.8988372093023256
-0.8988372093023256 x 100 = -89.88%