-89.94% is the change from 865 to 87
Calculation steps:
[( 87 - 865 ) ÷ 865] x 100 = -89.94%
Formula
Percentage change = [(87 - 865) / 865] x 100
Subtract the new number by the original number
87 - 865 = -778
-778 ÷ 865 = -0.8994219653179191
-0.8994219653179191 x 100 = -89.94%