How are these numbers calculated?

Big Games

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

Week of 5/14100.0*Average seed
Bologna 3 Pescara 1 +0.4
Internazionale 1 Sassuolo 2 -0.2
Cagliari 3 Empoli 2 -0.1
Sampdoria 1 Chievo 1 -0.0
Week of 5/21100.0*Average seed
Milan 3 Bologna 0 -0.5
Chievo 3 Roma 5 +0.1
Udinese 1 Sampdoria 1 -0.0
Week of 5/28100.0*Average seed
Bologna 1 Juventus 2 -0.1
Atalanta 1 Chievo 0 +0.0
Points
Chance Will Win Championship