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
Livorno 0 Torino 1 -2.2
+1.0
Fiorentina 3 Parma 1 -0.7
+0.0
Juventus 1 Calcio Catania 1 +0.6
-0.0
Reggina Calcio 2 Empoli 0 +0.2
-0.1
Udinese 0 Cagliari Calcio 2 +0.2
-0.3
Genoa 0 Lazio 2 -0.1
Week of 5/17100.0*Relegated100.0*Average seed
Torino 0 Fiorentina 1 -0.3
Cagliari Calcio 2 Reggina Calcio 2 +0.3
Points
Chance Will Win Championship