15.7% is the change from 618 to 715
Calculation steps:
[( 715 - 618 ) ÷ 618] x 100 = 15.7%
Formula
Percentage change = [(715 - 618) / 618] x 100
Subtract the new number by the original number
715 - 618 = 97
97 ÷ 618 = 0.156957928802589
0.156957928802589 x 100 = 15.7%