-0.97% is the change from 618 to 612
Calculation steps:
[( 612 - 618 ) ÷ 618] x 100 = -0.97%
Formula
Percentage change = [(612 - 618) / 618] x 100
Subtract the new number by the original number
612 - 618 = -6
-6 ÷ 618 = -0.009708737864077669
-0.009708737864077669 x 100 = -0.97%