3.08% is the change from 585 to 603
Calculation steps:
[( 603 - 585 ) ÷ 585] x 100 = 3.08%
Formula
Percentage change = [(603 - 585) / 585] x 100
Subtract the new number by the original number
603 - 585 = 18
18 ÷ 585 = 0.03076923076923077
0.03076923076923077 x 100 = 3.08%