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
America-MG 3 Atletico-GO 0 +12.0
-0.4
ABC 4 ASA 1 +5.5
-0.1
Guaratingueta 0 Ceara 1 -4.6
+0.1
Icasa 2 Paysandu 1 -2.3
+0.1
Avai 0 America-RN 1 +1.3
-0.1
Chapecoense 1 Bragantino 1 +0.3
Oeste 2 Figueirense 2 +0.1
Sao Caetano 3 Joinville 2 +0.1
-0.1
Week of 11/22100.0*Serie C100.0*Average seed
Oeste 2 Atletico-GO 4 -33.0
+1.1
Guaratingueta 3 Parana 4 -12.0
+0.2
Paysandu 0 Bragantino 1 -3.3
+0.3
ABC 1 Avai 0 +0.7
Sao Caetano 2 America-RN 2 -0.2
+0.1
Week of 11/29100.0*Serie C100.0*Average seed
Atletico-GO 2 Guaratingueta 0 No
+0.5
Sport Recife 0 Paysandu 0 +0.0
Points
Chance Will Win Championship