-1.78% is the change from 618 to 607
Calculation steps:
[( 607 - 618 ) ÷ 618] x 100 = -1.78%
Formula
Percentage change = [(607 - 618) / 618] x 100
Subtract the new number by the original number
607 - 618 = -11
-11 ÷ 618 = -0.01779935275080906
-0.01779935275080906 x 100 = -1.78%