4.1% is the change from 585 to 609
Calculation steps:
[( 609 - 585 ) ÷ 585] x 100 = 4.1%
Formula
Percentage change = [(609 - 585) / 585] x 100
Subtract the new number by the original number
609 - 585 = 24
24 ÷ 585 = 0.041025641025641026
0.041025641025641026 x 100 = 4.1%