-2.99% is the change from 603 to 585
Calculation steps:
[( 585 - 603 ) ÷ 603] x 100 = -2.99%
Formula
Percentage change = [(585 - 603) / 603] x 100
Subtract the new number by the original number
585 - 603 = -18
-18 ÷ 603 = -0.029850746268656716
-0.029850746268656716 x 100 = -2.99%