-48.54% is the change from 618 to 318
Calculation steps:
[( 318 - 618 ) ÷ 618] x 100 = -48.54%
Formula
Percentage change = [(318 - 618) / 618] x 100
Subtract the new number by the original number
318 - 618 = -300
-300 ÷ 618 = -0.4854368932038835
-0.4854368932038835 x 100 = -48.54%