Hey guys

Just wondering if someone can explain to me how to understand the "Rtng" (rating?) column for a horses form. Basically on thetote.com.au website when you click on a horse a window is displayed showing you its various stats.

What does the "Rtng" column refer to and what is a good value for that column? Like if a horses has a "rtng" value of over 400 is it better than a horse with 300 or is it the other way around? Also some horses end up with negative values..

If anyone can explain it to this newbie that would be great

Thanks