4.82% is the change from 581 to 609
Calculation steps:
[( 609 - 581 ) ÷ 581] x 100 = 4.82%
Formula
Percentage change = [(609 - 581) / 581] x 100
Subtract the new number by the original number
609 - 581 = 28
28 ÷ 581 = 0.04819277108433735
0.04819277108433735 x 100 = 4.82%