6.12% is the change from 686 to 728
Calculation steps:
[( 728 - 686 ) ÷ 686] x 100 = 6.12%
Formula
Percentage change = [(728 - 686) / 686] x 100
Subtract the new number by the original number
728 - 686 = 42
42 ÷ 686 = 0.061224489795918366
0.061224489795918366 x 100 = 6.12%