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
Crotone 1 Udinese 0 +0.1
Torino 0 Napoli 5 +0.1
Cagliari 3 Empoli 2 -0.1
Sampdoria 1 Chievo 1 +0.0
Week of 5/21100.0*Average seed
Genoa 2 Torino 1 +0.2
Udinese 1 Sampdoria 1 +0.1
Chievo 3 Roma 5 +0.1
Sassuolo 6 Cagliari 2 +0.0
Week of 5/28100.0*Average seed
Sampdoria 2 Napoli 4 -0.6
Internazionale 5 Udinese 2 +0.1
Points
Chance Will Win Championship