How are these numbers calculated?

Big Games

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

Week of 5/1100.0*Relegated100.0*Average seed
Atalanta BC 1 Bologna 1 +10.8
-0.1
Lazio 0 Inter Milan 2 -0.3
Calcio Catania 1 Juventus 1 +0.2
Week of 5/9100.0*Relegated100.0*Average seed
Napoli 2 Atalanta BC 0 Yes
-0.0
Bologna 1 Calcio Catania 1 -0.7
Livorno 1 Lazio 2 +0.6
Week of 5/15None
Points
Chance Will Win Championship