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
Lazio 2 Internazionale 0 -0.2
Chievo 0 Fiorentina 0 -0.1
Genoa 2 Roma 3 +0.0
Sassuolo 1 Hellas Verona 0 -0.0
Week of 5/8100.0*Average seed
Carpi 1 Lazio 3 -0.2
Roma 3 Chievo 0 -0.1
Torino 1 Napoli 2 +0.0
Week of 5/15100.0*Average seed
Chievo 0 Bologna 0 +0.1
Genoa 1 Atalanta 2 +0.1
Points
Chance Will Win Championship