13.4% is the change from 642 to 728
Calculation steps:
[( 728 - 642 ) ÷ 642] x 100 = 13.4%
Formula
Percentage change = [(728 - 642) / 642] x 100
Subtract the new number by the original number
728 - 642 = 86
86 ÷ 642 = 0.13395638629283488
0.13395638629283488 x 100 = 13.4%