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
Ceara 1 CRB 2 -15.1
+0.7
Bragantino 1 Joinville 0 +6.2
-0.2
Guaratingueta 1 Vitoria 0 +2.3
-0.2
Parana 2 Ipatinga 0 +0.1
Week of 11/17100.0*Serie C**100.0*Average seed
CRB 2 Guarani 1 -13.9
+0.5
Ceara 1 Bragantino 2 +7.0
-0.2
Ipatinga 2 Guaratingueta 3 +7.0
-0.2
Week of 11/23100.0*Serie C**100.0*Average seed
ASA 2 CRB 4 -47.5
+1.3
Bragantino 3 Boa Esporte 0 +5.4
-0.1
Guaratingueta 2 Barueri 1 +4.5
-0.1
Guarani 1 Sao Caetano 2 -2.9
+0.1
Points
Chance Will Win Championship