How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Serie C100.0*Average seed
Oeste 1 Criciuma 1 -0.2
+0.2
Atletico-GO 3 Macae 4 +0.2
Vitoria 1 Ceara 0 No
+0.0
Parana 1 America-MG 0 -0.2
Week of 11/20100.0*Serie C100.0*Average seed
Paysandu 1 Criciuma 0 -0.4
Parana 0 Bragantino 2 +0.3
Macae 1 Boa Esporte 1 +0.1
America-MG 1 Ceara 1 +0.0
CRB 2 Sampaio Correa 1 -0.0
Atletico-GO 3 Oeste 1 +0.0
Week of 11/27100.0*Serie C100.0*Average seed
Criciuma 2 CRB 1 +0.7
Sampaio Correa 1 Parana 1 +0.2
Bahia 1 Atletico-GO 0 +0.1
Points
Chance Will Win Championship