-18.29% is the change from 585 to 478
Calculation steps:
[( 478 - 585 ) ÷ 585] x 100 = -18.29%
Formula
Percentage change = [(478 - 585) / 585] x 100
Subtract the new number by the original number
478 - 585 = -107
-107 ÷ 585 = -0.1829059829059829
-0.1829059829059829 x 100 = -18.29%