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 +0.3
Chievo 0 Fiorentina 0 +0.0
Sassuolo 1 Hellas Verona 0 -0.0
Genoa 2 Roma 3 +0.0
Milan 3 Frosinone 3 +0.0
Week of 5/8100.0*Average seed
Carpi 1 Lazio 3 +0.4
Roma 3 Chievo 0 +0.1
Bologna 0 Milan 1 -0.1
Week of 5/15None
Points
Chance Will Win Championship