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*Average seed
Lazio 2 Internazionale 0 +0.3
Chievo 0 Fiorentina 0 +0.0
Sassuolo 1 Hellas Verona 0 -0.0
Genoa 2 Roma 3 +0.0
Milan 3 Frosinone 3 +0.0
If winner is:HomeDrawAway
Week of 5/8100.0*Average seed
Carpi vs Lazio-0.3-0.1+0.4
Roma vs Chievo+0.1-0.0-0.4
Bologna vs Milan+0.1+0.0-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleUEFA CL1234567891011121314151617181920Serie BCount
572-0-0NoNo104743No167,194,836
551-1-0NoNo11836No303,138,841
541-0-1NoNo946No310,370,262
530-2-0NoNo7327No137,530,063
520-1-1NoNo4357No281,617,103
510-0-2NoNo3367No144,285,695
Total:NoNo186625No1,344,136,800
Points
Chance Will Win Championship