8.68% is the change from 668 to 726
Calculation steps:
[( 726 - 668 ) ÷ 668] x 100 = 8.68%
Formula
Percentage change = [(726 - 668) / 668] x 100
Subtract the new number by the original number
726 - 668 = 58
58 ÷ 668 = 0.08682634730538923
0.08682634730538923 x 100 = 8.68%