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 -0.2
Torino 0 Napoli 5 Yes
+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
Napoli 4 Fiorentina 1 +0.1
+0.2
Chievo 3 Roma 5 -0.1
If winner is:HomeDrawAway
Week of 5/28100.0*Chance wins title100.0*UEFA CL100.0*Average seed
Roma vs Genoa-0.2+0.3+0.3
Sampdoria vs Napoli-0.2-0.2+0.2

What If

Chances based on how well Napoli finishes out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleUEFA CL1234567891011121314151617181920Serie BCount
861-0-0NoYes3961No4,751,567,211
83-84NoYes100No3,901,350,069*
Total:NoYes2278No8,652,917,280

* Row combines multiple less frequent records.

Points
Chance Will Win Championship