-1.48% is the change from 609 to 600
Calculation steps:
[( 600 - 609 ) ÷ 609] x 100 = -1.48%
Formula
Percentage change = [(600 - 609) / 609] x 100
Subtract the new number by the original number
600 - 609 = -9
-9 ÷ 609 = -0.014778325123152709
-0.014778325123152709 x 100 = -1.48%