7.77% is the change from 618 to 666
Calculation steps:
[( 666 - 618 ) ÷ 618] x 100 = 7.77%
Formula
Percentage change = [(666 - 618) / 618] x 100
Subtract the new number by the original number
666 - 618 = 48
48 ÷ 618 = 0.07766990291262135
0.07766990291262135 x 100 = 7.77%