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
Corinthians 1 Internacional 0 +1.0
Grêmio 3 América-MG 0 -0.2
Atlético-PR 2 Sport Recife 0 -0.2
Chapecoense 2 São Paulo 0 -0.1
Palmeiras 1 Botafogo 0 +0.1
Ponte Preta 1 Fluminense 0 +0.0
Cruzeiro 2 Santos 2 +0.0
Week of 11/26100.0*Average seed
Corinthians 0 Atlético-PR 0 -0.2
Santa Cruz 5 Grêmio 1 +0.2
Botafogo 1 Ponte Preta 1 +0.2
Palmeiras 1 Chapecoense 0 +0.1
Internacional 1 Cruzeiro 0 +0.1
Figueirense 1 Fluminense 0 +0.0
If winner is:HomeEmpateAway
Week of 12/4100.0*Average seed
Cruzeiro vs Corinthians-0.7-0.4+0.9
Grêmio vs Botafogo-0.1+0.3-0.1
Atlético-PR vs Flamengo-0.2+0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
581-0-0NoNo394714No5,848,922
560-0-1NoNo928No3,733,500
550-1-0NoNo6238No5,844,298
Total:NoNo15185116No15,426,720
Points
Chance Will Win Championship