How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Serie B**100.0*Average seed
Sport 2 Botafogo 0 -19.4
+0.4
Bahia 1 Ponte Preta 0 +4.2
-0.1
Portuguesa 2 Gremio 2 +1.7
-0.0
Flamengo 1 Palmeiras 1 -0.1
Week of 11/24100.0*Serie B**100.0*Average seed
Inter 0 Portuguesa 2 +19.7
-0.2
Bahia 1 Nautico 1 +0.7
-0.0
Sport 1 Fluminense 1 -0.4
-0.0
If winner is:HomeDrawAway
Week of 12/1100.0*Serie B**100.0*Average seed
Nautico vs SportYesYes-43.0
-0.1-0.1+0.5
Atletico-GO vs Bahia-8.7+5.4+5.4
+0.1-0.1-0.1
Portuguesa vs Ponte Preta+2.7+2.7-8.7
-0.0-0.0+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seedSerie
TPW-D-Lwins titleLibertadores*1234567891011121314151617181920B**Count
441-0-0NoNo9444747.3%8,441,658
41-42NoNo100Yes37,195,302*
Total:NoNo289090.2%45,636,960

* Row combines multiple less frequent records.

Points
Chance Will Win Championship