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
Confianca 0 Sampaio Correa 1 +0.8
+1.4
Sampaio Correa 2 Parana 1 +0.6
No
+1.4
Juventude 1 Cruzeiro 0 -0.6
+0.1
CSA 1 Avai 1 +0.3
+0.0
Avai 5 Juventude 2 +0.3
-0.2
Botafogo-SP 1 CSA 3 -0.2
-0.1
Chapecoense 1 Ponte Preta 0 +0.2
+0.2
Cruzeiro 2 Operario-PR 1 +0.2
+0.2
Ponte Preta 2 Nautico 0 -0.1
-0.2
Figueirense 3 Brasil de Pelotas 0 +0.1
CRB 5 Figueirense 1 -0.2
Guarani 1 Vitoria 2 +0.1
Oeste 0 Confianca 1 -0.1
Brasil de Pelotas 0 America-MG 0 +0.1
Week of 1/22100.0*Serie A100.0*Serie C100.0*Average seed
Cuiaba 1 Sampaio Correa 3 +2.5
+1.3
Juventude 2 Figueirense 1 No
-0.1
CSA 1 Brasil de Pelotas 1 +0.3
+0.0
Avai 2 Guarani 1 -0.3
Operario-PR 2 Chapecoense 0 -0.2
Ponte Preta 3 CRB 1 -0.1
Week of 1/29100.0*Serie A100.0*Serie C100.0*Average seed
Sampaio Correa 1 Oeste 0 +1.2
Botafogo-SP 0 Operario-PR 1 -0.3
America-MG 2 Avai 1 +0.3
Figueirense 2 Ponte Preta 7 -0.3
Nautico 1 CSA 1 -0.1
Points
Chance Will Win Championship