How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/9100.0*Serie C**100.0*Average seed
Guaratingueta 1 Vitoria 0 +0.1
Sao Caetano 4 Boa Esporte 2 -0.3
Avai 1 Guarani 0 +0.1
ASA 2 Atletico-PR 3 +0.1
America-MG 3 ABC 3 -0.1
Ceara 1 CRB 2 +0.1
Parana 2 Ipatinga 0 -0.1
Week of 11/17100.0*Serie C**100.0*Average seed
Ceara 1 Bragantino 2 +0.7
-0.0
Ipatinga 2 Guaratingueta 3 +0.4
Boa Esporte 0 ABC 0 No
-0.6
CRB 2 Guarani 1 -0.1
+0.1
Week of 11/23100.0*Serie C**100.0*Average seed
Bragantino 3 Boa Esporte 0 -1.2
ASA 2 CRB 4 +0.3
Vitoria 1 Ceara 1 -0.1
Guarani 1 Sao Caetano 2 +0.1
ABC 2 America-RN 2 +0.0
Points
Chance Will Win Championship