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*Average seed
Roma 3 Juventus 1 -3.9
Week of 5/21100.0*Chance wins title100.0*Average seed
Juventus 3 Crotone 0 Yes
+0.1
Chievo 3 Roma 5 -4.0
-0.0
Week of 5/28None
Points
Chance Will Win Championship