12.69% is the change from 646 to 728
Calculation steps:
[( 728 - 646 ) ÷ 646] x 100 = 12.69%
Formula
Percentage change = [(728 - 646) / 646] x 100
Subtract the new number by the original number
728 - 646 = 82
82 ÷ 646 = 0.12693498452012383
0.12693498452012383 x 100 = 12.69%