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
Palermo 2 Bari 1 +0.2
Inter 3 Fiorentina 1 +0.1
Juventus 2 Chievo 2 +0.0
Week of 5/22100.0*Average seed
Palermo 1 Chievo 3 -0.4
Juventus 2 Napoli 2 +0.1
Points
Chance Will Win Championship