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*Average seed
Avai 5 Juventude 2 +4.4
+1.4
CSA 1 Avai 1 -3.3
-0.3
Juventude 1 Cruzeiro 0 -2.2
-0.0
Botafogo-SP 1 CSA 3 -1.3
-0.1
Chapecoense 1 Ponte Preta 0 +0.3
+0.2
Cruzeiro 2 Operario-PR 1 +0.2
+0.1
Figueirense 3 Brasil de Pelotas 0 +0.2
+0.1
Ponte Preta 2 Nautico 0 -0.2
-0.2
Parana 0 Cuiaba 2 -0.1
Sampaio Correa 2 Parana 1 -0.1
-0.2
Confianca 0 Sampaio Correa 1 -0.1
CRB 5 Figueirense 1 -0.2
Guarani 1 Vitoria 2 +0.1
Brasil de Pelotas 0 America-MG 0 +0.1
Week of 1/22100.0*Serie A100.0*Average seed
Avai 2 Guarani 1 +5.6
+1.2
CSA 1 Brasil de Pelotas 1 +2.0
+0.1
Juventude 2 Figueirense 1 -1.9
-0.1
Cuiaba 1 Sampaio Correa 3 -0.1
-0.2
Operario-PR 2 Chapecoense 0 -0.1
Ponte Preta 3 CRB 1 -0.1
Week of 1/29100.0*Serie A100.0*Average seed
America-MG 2 Avai 1 No
-1.0
Guarani 0 Juventude 1 No
-0.1
Nautico 1 CSA 1 +5.5
+0.1
Figueirense 2 Ponte Preta 7 -0.4
Botafogo-SP 0 Operario-PR 1 -0.4
Sampaio Correa 1 Oeste 0 -0.3
Points
Chance Will Win Championship