9.13% is the change from 668 to 729
Calculation steps:
[( 729 - 668 ) ÷ 668] x 100 = 9.13%
Formula
Percentage change = [(729 - 668) / 668] x 100
Subtract the new number by the original number
729 - 668 = 61
61 ÷ 668 = 0.09131736526946108
0.09131736526946108 x 100 = 9.13%