12.32% is the change from 609 to 684
Calculation steps:
[( 684 - 609 ) ÷ 609] x 100 = 12.32%
Formula
Percentage change = [(684 - 609) / 609] x 100
Subtract the new number by the original number
684 - 609 = 75
75 ÷ 609 = 0.12315270935960591
0.12315270935960591 x 100 = 12.32%