-2.43% is the change from 618 to 603
Calculation steps:
[( 603 - 618 ) ÷ 618] x 100 = -2.43%
Formula
Percentage change = [(603 - 618) / 618] x 100
Subtract the new number by the original number
603 - 618 = -15
-15 ÷ 618 = -0.024271844660194174
-0.024271844660194174 x 100 = -2.43%