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
+0.1
-1.1
CSA 1 Avai 1 +0.1
+0.0
Figueirense 3 Brasil de Pelotas 0 +0.1
+0.2
Sampaio Correa 2 Parana 1 -0.1
-0.1
CRB 5 Figueirense 1 -0.1
-0.2
Parana 0 Cuiaba 2 -0.1
Ponte Preta 2 Nautico 0 -0.1
Guarani 1 Vitoria 2 +0.1
+0.1
Cruzeiro 2 Operario-PR 1 No
+0.9
Oeste 0 Confianca 1 -0.1
Confianca 0 Sampaio Correa 1 +0.1
Avai 5 Juventude 2 -0.1
Brasil de Pelotas 0 America-MG 0 -0.0
Chapecoense 1 Ponte Preta 0 +0.0
Week of 1/22100.0*Serie A100.0*Serie C100.0*Average seed
Cruzeiro 0 Nautico 0 -0.4
Avai 2 Guarani 1 +0.1
Cuiaba 1 Sampaio Correa 3 -0.1
Ponte Preta 3 CRB 1 +0.1
Operario-PR 2 Chapecoense 0 -0.1
CSA 1 Brasil de Pelotas 1 +0.0
Confianca 0 America-MG 0 +0.0
Week of 1/29100.0*Serie A100.0*Serie C100.0*Average seed
CRB 4 Cuiaba 1 -0.4
Brasil de Pelotas 0 Vitoria 1 +0.4
Guarani 0 Juventude 1 +0.2
Chapecoense 3 Confianca 1 +0.1
Parana 0 Cruzeiro 0 -0.0
Points
Chance Will Win Championship