How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 7/20100.0*Average seed
Almeria 0 Malaga 0 -0.4
Elche 2 Oviedo 1 +0.3
Zaragoza 2 Ponferradina 1 +0.3
Sporting 0 Huesca 1 +0.3
Alcorcon 2 Girona 0 -0.2
Las Palmas 5 Extremadura 1 -0.1
Week of 8/7None
Points
Chance Will Win Championship