How are these numbers calculated?

Big Games

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

Week of 5/23100.0*Relegated100.0*Average seed
Valladolid 1 Sporting de Gijón 2 -37.6
+1.5
Barcelona 0 Osasuna 1 +27.7
-0.4
Getafe 1 Numancia 0 +1.3
-0.1
Recre 0 Racing 1 -1.0
+0.1
Málaga 1 Real Betis 1 *+0.1
-0.0
Real Madrid 1 Mallorca 3 *+0.1
Week of 5/30100.0*Relegated100.0*Average seed
Sporting de Gijón 2 Recre 1 No
+1.2
Osasuna 2 Real Madrid 1 +9.6
-0.4
Atlético Madrid 3 Almería 0 -0.4
Numancia 0 Sevilla 2 -0.4
Racing 1 Getafe 1 +0.1
Espanyol 3 Málaga 0 -0.3

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship