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
Oeste 0 Confianca 1 -2.5
+1.0
Juventude 1 Cruzeiro 0 No
+0.1
Figueirense 3 Brasil de Pelotas 0 +1.0
Sampaio Correa 2 Parana 1 -0.9
-0.1
America-MG 1 Botafogo-SP 1 -0.2
Ponte Preta 2 Nautico 0 -0.1
Confianca 0 Sampaio Correa 1 +0.1
-1.0
CRB 5 Figueirense 1 -0.2
Cruzeiro 2 Operario-PR 1 -0.2
Avai 5 Juventude 2 -0.1
Brasil de Pelotas 0 America-MG 0 +0.0
Week of 1/22100.0*Serie A100.0*Serie C100.0*Average seed
Confianca 0 America-MG 0 -0.3
Avai 2 Guarani 1 +0.2
Vitoria 1 Botafogo-SP 0 -0.1
Cruzeiro 0 Nautico 0 +0.1
CSA 1 Brasil de Pelotas 1 -0.0
Week of 1/29100.0*Serie A100.0*Serie C100.0*Average seed
Chapecoense 3 Confianca 1 -0.7
Brasil de Pelotas 0 Vitoria 1 -0.1
Parana 0 Cruzeiro 0 -0.1
Guarani 0 Juventude 1 +0.1
Points
Chance Will Win Championship