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
Las Palmas 5 Extremadura 1 +1.4
Lugo 2 Mirandes 1 +0.3
Numancia 2 Tenerife 1 +0.3
Santander 1 Rayo 2 -0.2
Sporting 0 Huesca 1 +0.2
Alcorcon 2 Girona 0 -0.2
Elche 2 Oviedo 1 -0.1
Zaragoza 2 Ponferradina 1 +0.0
Almeria 0 Malaga 0 +0.0
Week of 8/7None
Points
Chance Will Win Championship