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
Figueirense 3 Brasil de Pelotas 0 +0.8
Oeste 0 Confianca 1 -1.8
+0.7
Juventude 1 Cruzeiro 0 No
+0.1
Sampaio Correa 2 Parana 1 -0.6
Confianca 0 Sampaio Correa 1 -0.8
CRB 5 Figueirense 1 -0.1
Vitoria 0 Chapecoense 0 +0.0
Cruzeiro 2 Operario-PR 1 -0.1
Avai 5 Juventude 2 -0.1
Week of 1/22100.0*Serie A100.0*Serie C100.0*Average seed
Vitoria 1 Botafogo-SP 0 -0.1
Avai 2 Guarani 1 +0.1
Cruzeiro 0 Nautico 0 +0.1
Confianca 0 America-MG 0 -0.0
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 -0.4
Brasil de Pelotas 0 Vitoria 1 -0.4
Guarani 0 Juventude 1 +0.1
Parana 0 Cruzeiro 0 -0.1
Points
Chance Will Win Championship