-99.31% is the change from 864 to 6
Calculation steps:
[( 6 - 864 ) ÷ 864] x 100 = -99.31%
Formula
Percentage change = [(6 - 864) / 864] x 100
Subtract the new number by the original number
6 - 864 = -858
-858 ÷ 864 = -0.9930555555555556
-0.9930555555555556 x 100 = -99.31%