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*Average seed
Palermo 2 Sampdoria 0 +0.2
Empoli 0 Bologna 0 -0.0
Udinese 1 Torino 5 +0.1
Genoa 2 Roma 3 +0.1
Napoli 2 Atalanta 1 +0.1
Week of 5/8100.0*Average seed
Bologna 0 Milan 1 -0.9
Sampdoria 0 Genoa 3 +0.2
Atalanta 1 Udinese 1 +0.1
Internazionale 2 Empoli 1 +0.1
Week of 5/15100.0*Average seed
Chievo 0 Bologna 0 +0.4
Udinese 1 Carpi 2 +0.3
Genoa 1 Atalanta 2 -0.2
Juventus 5 Sampdoria 0 +0.2
Empoli 2 Torino 1 -0.0
Points
Chance Will Win Championship