6.03% is the change from 647 to 686
Calculation steps:
[( 686 - 647 ) ÷ 647] x 100 = 6.03%
Formula
Percentage change = [(686 - 647) / 647] x 100
Subtract the new number by the original number
686 - 647 = 39
39 ÷ 647 = 0.06027820710973725
0.06027820710973725 x 100 = 6.03%