8.71% is the change from 666 to 724
Calculation steps:
[( 724 - 666 ) ÷ 666] x 100 = 8.71%
Formula
Percentage change = [(724 - 666) / 666] x 100
Subtract the new number by the original number
724 - 666 = 58
58 ÷ 666 = 0.08708708708708708
0.08708708708708708 x 100 = 8.71%