How are these numbers calculated?

Big Games

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

Week of 1/15100.0*Serie A100.0*Serie C100.0*Average seed
Juventude 1 Cruzeiro 0 No
CSA 1 Avai 1 +0.1
Figueirense 3 Brasil de Pelotas 0 +0.1
Sampaio Correa 2 Parana 1 -0.1
Ponte Preta 2 Nautico 0 -0.1
Oeste 0 Confianca 1 -0.1
If winner is:HomeDrawAway
Cruzeiro vs Operario-PR-0.3-0.2+0.4
Parana vs Cuiaba+0.3-0.1-0.1
CRB vs Figueirense-0.1-0.1+0.2
Guarani vs Vitoria-0.1-0.1+0.2
Nautico vs Oeste+0.1-0.1-0.1
Confianca vs Sampaio Correa-0.1+0.1+0.1
Brasil de Pelotas vs America-MG-0.2-0.0+0.1
Avai vs Juventude-0.1+0.0+0.1
If winner is:HomeDrawAway
Week of 1/24100.0*Serie A100.0*Serie C100.0*Average seed
Cruzeiro vs NauticoNo-0.2+0.6
Juventude vs Figueirense-0.1-0.1+0.3
Vitoria vs Botafogo-SP+0.2-0.1-0.1
Oeste vs Parana-0.1-0.1+0.1
Confianca vs America-MG-0.3+0.0+0.1
CSA vs Brasil de Pelotas+0.1-0.0-0.2
Ponte Preta vs CRB+0.1+0.0-0.2
Cuiaba vs Sampaio Correa+0.1+0.0-0.1

What If

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

If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleSerie A1234567891011121314151617181920Serie CCount
Chance Will Win Championship