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*Série C100.0*Average seed
Oeste 1 Criciúma 1 -0.2
+0.0
Week of 11/20100.0*Série C100.0*Average seed
Macaé 1 Boa Esporte 1 +16.8
-0.6
Atlético-GO 3 Oeste 1 +1.5
-0.1
América-MG 1 Ceará 1 -1.4
+0.0
Week of 11/27100.0*Série C100.0*Average seed
Ceará 1 Macaé 0 +37.8
-0.9
Oeste 0 Paysandu 0 +12.0
Bahia 1 Atlético-GO 0 +0.1
Criciúma 2 CRB 1 -0.1
Points
Chance Will Win Championship