13.04% is the change from 644 to 728
Calculation steps:
[( 728 - 644 ) ÷ 644] x 100 = 13.04%
Formula
Percentage change = [(728 - 644) / 644] x 100
Subtract the new number by the original number
728 - 644 = 84
84 ÷ 644 = 0.13043478260869565
0.13043478260869565 x 100 = 13.04%