How are these numbers calculated?

Big Games

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

Week of 5/8100.0*Average seed
Juventus 2 Chievo 2 +0.1
Genoa 2 Sampdoria 1 -0.0
Brescia 1 Catania 2 -0.2
Bologna 0 Parma 0 +0.1
Week of 5/22100.0*Average seed
Palermo 1 Chievo 3 +2.4
Genoa 3 Cesena 2 +0.3
Lecce 2 Lazio 4 +0.2
Cagliari 1 Parma 1 +0.1
Bologna 0 Bari 4 +0.1
Inter 3 Catania 1 +0.1
Points
Chance Will Win Championship