How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Serie C100.0*Average seed
Guaratingueta 0 Ceara 1 +14.6
-0.9
America-MG 3 Atletico-GO 0 -4.5
+0.1
ABC 4 ASA 1 +2.8
-0.1
Icasa 2 Paysandu 1 -1.8
+0.1
Avai 0 America-RN 1 +1.5
-0.2
Chapecoense 1 Bragantino 1 +0.2
-0.0
Oeste 2 Figueirense 2 +0.2
Week of 11/22100.0*Serie C100.0*Average seed
Guaratingueta 3 Parana 4 +30.1
-0.9
Oeste 2 Atletico-GO 4 +13.9
-0.1
Paysandu 0 Bragantino 1 -7.1
-0.0
ABC 1 Avai 0 +1.3
-0.2
Sao Caetano 2 America-RN 2 -0.1
Week of 11/29100.0*Serie C100.0*Average seed
Atletico-GO 2 Guaratingueta 0 Yes
-0.5
Sport Recife 0 Paysandu 0 -0.8
+0.1
Points
Chance Will Win Championship