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*UEFA CL100.0*Average seed
Fiorentina 3 Lazio 2 No
-0.1
Torino 0 Napoli 5 -0.5
Roma 3 Juventus 1 -0.4
Atalanta 1 Milan 1 +0.0
Week of 5/21100.0*UEFA CL100.0*Average seed
Empoli 0 Atalanta 1 -0.1
Week of 5/28100.0*UEFA CL100.0*Average seed
Atalanta 1 Chievo 0 -0.4
Crotone 3 Lazio 1 -0.1
Points
Chance Will Win Championship