6.9% is the change from 609 to 651
Calculation steps:
[( 651 - 609 ) ÷ 609] x 100 = 6.9%
Formula
Percentage change = [(651 - 609) / 609] x 100
Subtract the new number by the original number
651 - 609 = 42
42 ÷ 609 = 0.06896551724137931
0.06896551724137931 x 100 = 6.9%