-3.07% is the change from 618 to 599
Calculation steps:
[( 599 - 618 ) ÷ 618] x 100 = -3.07%
Formula
Percentage change = [(599 - 618) / 618] x 100
Subtract the new number by the original number
599 - 618 = -19
-19 ÷ 618 = -0.030744336569579287
-0.030744336569579287 x 100 = -3.07%