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
Bragantino 1 Joinville 0 -24.1
+0.6
Guaratingueta 1 Vitoria 0 +13.0
-0.2
Ceara 1 CRB 2 +7.6
-0.1
Parana 2 Ipatinga 0 -1.2
Avai 1 Guarani 0 -0.5
Week of 11/17100.0*Serie C**100.0*Average seed
Ceara 1 Bragantino 2 -30.5
+0.9
Ipatinga 2 Guaratingueta 3 +15.3
-0.2
CRB 2 Guarani 1 +6.6
-0.1
Boa Esporte 0 ABC 0 +0.1
Week of 11/23100.0*Serie C**100.0*Average seed
Bragantino 3 Boa Esporte 0 No
+1.8
ASA 2 CRB 4 +18.7
-0.4
Guarani 1 Sao Caetano 2 -17.0
+0.3
Guaratingueta 2 Barueri 1 +15.1
-0.3
ABC 2 America-RN 2 -0.1
Points
Chance Will Win Championship