How are these numbers calculated?

Big Games

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

Week of 5/11100.0*Relegated100.0*Average seed
Osasuna 2 Murcia 1 +3.5
-0.2
Almería 0 Recre 2 +2.8
-0.1
Valladolid 0 Getafe 0 -1.6
-0.4
Real Zaragoza 2 Real Madrid 2 -0.5
+0.1
Levante 1 Valencia 5 -0.2
Real Betis 0 Sevilla 2 +0.1
Villarreal 2 Espanyol 0 +0.1
Barcelona 2 Mallorca 3 +0.1
Week of 5/17100.0*Relegated100.0*Average seed
Mallorca 3 Real Zaragoza 2 No
+0.2
Racing 1 Osasuna 0 No
+0.3
Recre 1 Valladolid 1 No
-0.1
Getafe 1 Real Betis 1 -0.3
Points
Chance Will Win Championship