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*Average seed
Grêmio 3 América-MG 0 +0.8
Corinthians 1 Internacional 0 -0.2
Atlético-PR 2 Sport Recife 0 -0.1
Ponte Preta 1 Fluminense 0 +0.1
Chapecoense 2 São Paulo 0 -0.1
Palmeiras 1 Botafogo 0 +0.1
Cruzeiro 2 Santos 2 +0.0
Flamengo 2 Coritiba 2 +0.0
Week of 11/26100.0*Average seed
Santa Cruz 5 Grêmio 1 -1.1
Palmeiras 1 Chapecoense 0 +0.1
Figueirense 1 Fluminense 0 +0.1
Corinthians 0 Atlético-PR 0 +0.1
Botafogo 1 Ponte Preta 1 -0.0
If winner is:HomeEmpateAway
Week of 12/4100.0*Average seed
Grêmio vs Botafogo+0.6-0.1-0.5
Chapecoense vs Atlético-MG-0.4+0.2+0.2
Ponte Preta vs Coritiba-0.2+0.2+0.2
Cruzeiro vs Corinthians+0.2-0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
561-0-0NoNo3862No17,225,352
540-0-1NoNo6733No11,043,446
530-1-0NoNo394714No17,368,162
Total:NoNo1454265No45,636,960
Points
Chance Will Win Championship