How are these numbers calculated?

Big Games

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

Week of 5/2100.0*Segunda Division100.0*Average seed
Málaga 3 Levante 1 +1.6
-0.1
Granada 3 Las Palmas 2 +0.9
Deportivo 0 Getafe 2 +0.8
-0.1
Sporting Gijón 2 Eibar 0 +0.6
-0.1
Atlético Madrid 1 Rayo Vallecano 0 -0.3
Week of 5/13None
Week of 5/15100.0*Segunda Division100.0*Average seed
Rayo Vallecano 3 Levante 1 -0.2
Points
Chance Will Win Championship