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 A100.0*Average seed
Guaratingueta 0 Ceara 1 +24.5
+1.1
Sport Recife 2 Parana 0 -8.7
-0.2
Icasa 2 Paysandu 1 -6.3
-0.2
Sao Caetano 3 Joinville 2 +2.0
+0.1
Oeste 2 Figueirense 2 +1.6
+0.0
Avai 0 America-RN 1 +1.4
+0.1
America-MG 3 Atletico-GO 0 -0.7
Week of 11/22100.0*Serie A100.0*Average seed
Palmeiras 4 Ceara 1 -28.2
-1.0
Boa Esporte 2 Sport Recife 3 -10.4
-0.2
Icasa 1 Chapecoense 2 +8.7
+0.2
Figueirense 2 ASA 0 -4.9
-0.2
Joinville 2 America-MG 1 +0.8
Week of 11/29100.0*Serie A100.0*Average seed
Ceara 0 Joinville 3 No
-1.3
Parana 2 Icasa 0 +14.7
+0.3
Bragantino 1 Figueirense 1 +4.7
+0.0
Points
Chance Will Win Championship