-99.15% is the change from 585 to 5
Calculation steps:
[( 5 - 585 ) ÷ 585] x 100 = -99.15%
Formula
Percentage change = [(5 - 585) / 585] x 100
Subtract the new number by the original number
5 - 585 = -580
-580 ÷ 585 = -0.9914529914529915
-0.9914529914529915 x 100 = -99.15%