2.59% is the change from 618 to 634
Calculation steps:
[( 634 - 618 ) ÷ 618] x 100 = 2.59%
Formula
Percentage change = [(634 - 618) / 618] x 100
Subtract the new number by the original number
634 - 618 = 16
16 ÷ 618 = 0.025889967637540454
0.025889967637540454 x 100 = 2.59%