2.18% is the change from 596 to 609
Calculation steps:
[( 609 - 596 ) ÷ 596] x 100 = 2.18%
Formula
Percentage change = [(609 - 596) / 596] x 100
Subtract the new number by the original number
609 - 596 = 13
13 ÷ 596 = 0.02181208053691275
0.02181208053691275 x 100 = 2.18%