-17.95% is the change from 585 to 480
Calculation steps:
[( 480 - 585 ) ÷ 585] x 100 = -17.95%
Formula
Percentage change = [(480 - 585) / 585] x 100
Subtract the new number by the original number
480 - 585 = -105
-105 ÷ 585 = -0.1794871794871795
-0.1794871794871795 x 100 = -17.95%