7.44% is the change from 618 to 664
Calculation steps:
[( 664 - 618 ) ÷ 618] x 100 = 7.44%
Formula
Percentage change = [(664 - 618) / 618] x 100
Subtract the new number by the original number
664 - 618 = 46
46 ÷ 618 = 0.0744336569579288
0.0744336569579288 x 100 = 7.44%