5.55% is the change from 577 to 609
Calculation steps:
[( 609 - 577 ) ÷ 577] x 100 = 5.55%
Formula
Percentage change = [(609 - 577) / 577] x 100
Subtract the new number by the original number
609 - 577 = 32
32 ÷ 577 = 0.05545927209705372
0.05545927209705372 x 100 = 5.55%