10.68% is the change from 618 to 684
Calculation steps:
[( 684 - 618 ) ÷ 618] x 100 = 10.68%
Formula
Percentage change = [(684 - 618) / 618] x 100
Subtract the new number by the original number
684 - 618 = 66
66 ÷ 618 = 0.10679611650485436
0.10679611650485436 x 100 = 10.68%