How are these numbers calculated?

Big Games

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

Week of 5/24100.0*Average seed
AC Milan 2 AS Roma 3 -0.2
Cagliari Calcio 2 Inter Milan 1 -0.1
Sampdoria 2 Udinese 2 -0.1
Week of 5/31100.0*Average seed
Udinese 6 Cagliari Calcio 2 +0.4
Palermo 2 Sampdoria 2 +0.2
Points
Chance Will Win Championship