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*Average seed
Atletico-MG 2 Atletico-GO 2 -0.1
Portuguesa 2 Gremio 2 +0.1
Sao Paulo 2 Nautico 1 -0.1
Week of 11/24100.0*Average seed
Botafogo 2 Atletico-MG 3 +0.3
Figueirense 2 Gremio 4 -0.2
Ponte Preta 0 Sao Paulo 0 +0.0
If winner is:HomeDrawAway
Week of 12/1100.0*Average seed
Atletico-MG vs Cruzeiro+0.4-0.2-0.2
Gremio vs Inter-0.2+0.1+0.1

What If

Chances based on how well the Atletico-MG finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seedSerie
TPW-D-Lwins titleLibertadores*1234567891011121314151617181920B**Count
721-0-0NoYes6436No5,586,495
69-70NoYes100No9,840,225*
Total:NoYes2377No15,426,720

* Row combines multiple less frequent records.

Points
Chance Will Win Championship