9.97% is the change from 662 to 728
Calculation steps:
[( 728 - 662 ) ÷ 662] x 100 = 9.97%
Formula
Percentage change = [(728 - 662) / 662] x 100
Subtract the new number by the original number
728 - 662 = 66
66 ÷ 662 = 0.09969788519637462
0.09969788519637462 x 100 = 9.97%