8.21% is the change from 609 to 659
Calculation steps:
[( 659 - 609 ) ÷ 609] x 100 = 8.21%
Formula
Percentage change = [(659 - 609) / 609] x 100
Subtract the new number by the original number
659 - 609 = 50
50 ÷ 609 = 0.08210180623973727
0.08210180623973727 x 100 = 8.21%