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 +0.2
Portuguesa 2 Gremio 2 -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
Gremio vs Inter+0.2-0.3-0.3
Atletico-MG vs Cruzeiro-0.2+0.2+0.2

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seedSerie
TPW-D-Lwins titleLibertadores*1234567891011121314151617181920B**Count
731-0-0NoYes100No26,475,779
710-1-0NoYes4357No12,603,575
700-0-1NoYes4357No6,557,606
Total:NoYes7624No45,636,960
Points
Chance Will Win Championship