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*Average seed
Crotone 1 Udinese 0 +0.2
Cagliari 3 Empoli 2 -0.1
Internazionale 1 Sassuolo 2 -0.1
Sampdoria 1 Chievo 1 -0.0
Torino 0 Napoli 5 +0.0
Week of 5/21100.0*Average seed
Udinese 1 Sampdoria 1 +0.2
Genoa 2 Torino 1 +0.1
Chievo 3 Roma 5 +0.0
If winner is:HomeDrawAway
Week of 5/28100.0*Average seed
Sampdoria vs Napoli+0.9-0.0-0.2
Torino vs Sassuolo+0.2+0.3-0.5
Internazionale vs Udinese+0.1+0.1-0.4

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleUEFA CL1234567891011121314151617181920Serie BCount
511-0-0NoNo6337No10,616,136
490-1-0NoNo6931No25,909,126
480-0-1NoNo53407No44,487,698
Total:NoNo856324No81,012,960
Points
Chance Will Win Championship