How are these numbers calculated?

Big Games

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

Week of 5/1100.0*Relegated100.0*Average seed
Atlético Madrid 3 Valladolid 1 +11.2
-0.4
Valladolid 0 Getafe 0 +7.1
-0.2
Deportivo 0 Real Zaragoza 1 +5.7
-0.2
Racing 1 Sevilla 5 -4.5
+0.1
Athletic Bilbao 1 Málaga 1 +2.3
-0.0
Tenerife 2 Racing 1 +2.1
-0.1
Málaga 1 Sporting de Gij 1 -1.7
+0.0
Barcelona 4 Tenerife 1 -1.0
+0.0
Real Zaragoza 1 Espanyol 0 +0.7
-0.0
Valencia 3 Xerez 1 -0.4
+0.1
Xerez 2 Almería 1 +0.3
-0.1
Getafe 1 Sporting de Gij 1 +0.3
Almería 4 Villarreal 2 +0.1
Week of 5/8100.0*Relegated100.0*Average seed
Valladolid 2 Racing 1 -12.6
+0.6
Tenerife 2 Almería 2 -2.9
+0.1
Getafe 2 Málaga 1 -2.6
+0.1
Xerez 3 Real Zaragoza 2 +0.5
-0.2
Week of 5/16100.0*Relegated100.0*Average seed
Barcelona 4 Valladolid 0 +15.9
-0.4
Málaga 1 Real Madrid 1 +10.1
-0.2
Valencia 1 Tenerife 0 -6.4
+0.2
Racing 2 Sporting de Gij 0 +4.1
-0.1
Points
Chance Will Win Championship