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*Chance wins title100.0*UEFA CL100.0*Average seed
Roma 3 Juventus 1 +3.8
Yes
+0.2
Torino 0 Napoli 5 -0.2
Fiorentina 3 Lazio 2 Yes
Week of 5/21100.0*Chance wins title100.0*UEFA CL100.0*Average seed
Juventus 3 Crotone 0 No
-0.1
Chievo 3 Roma 5 +4.0
+0.2
Napoli 4 Fiorentina 1 -0.1
-0.2
Week of 5/28100.0*Chance wins title100.0*UEFA CL100.0*Average seed
Roma 3 Genoa 2 +0.2
Sampdoria 2 Napoli 4 -0.2
Points
Chance Will Win Championship