How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/19100.0*Serie B100.0*Average seed
Corinthians 1 Internacional 0 +18.8
-0.4
Vitória 4 Figueirense 0 +16.7
-0.2
Atlético-PR 2 Sport Recife 0 -0.9
+0.1
Flamengo 2 Coritiba 2 +0.3
Chapecoense 2 São Paulo 0 -0.1
Week of 11/26100.0*Serie B100.0*Average seed
Internacional 1 Cruzeiro 0 -20.8
+0.3
Coritiba 0 Vitória 1 +11.5
-0.1
América-MG 2 Sport Recife 2 -1.3
+0.0
If winner is:HomeEmpateAway
Week of 12/4100.0*Serie B100.0*Average seed
Fluminense vs InternacionalYesYes-46.3
-0.4-0.4+0.6
Sport Recife vs Figueirense+15.8-9.6-9.7
-0.2+0.1+0.1
Vitória vs Palmeiras+4.7+4.7-7.7
-0.1-0.1+0.2

What If

Chances based on how well the Internacional finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
451-0-0NoNo20542625.5%5,846,558
42-43NoNo100Yes9,580,162*
Total:NoNo8217271.8%15,426,720

* Row combines multiple less frequent records.

Points
Chance Will Win Championship