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 +26.2
+1.2
Sport Recife 2 Parana 0 -7.1
-0.2
Icasa 2 Paysandu 1 -3.9
-0.1
Avai 0 America-RN 1 +2.4
+0.1
Sao Caetano 3 Joinville 2 +1.0
+0.1
Oeste 2 Figueirense 2 +0.9
+0.0
America-MG 3 Atletico-GO 0 -0.3
Week of 11/22100.0*Serie A100.0*Average seed
Palmeiras 4 Ceara 1 -17.8
-0.5
Icasa 1 Chapecoense 2 +13.2
+0.3
Boa Esporte 2 Sport Recife 3 -9.9
-0.2
Figueirense 2 ASA 0 -2.8
-0.1
Joinville 2 America-MG 1 +0.6
+0.0
Week of 11/29100.0*Serie A100.0*Average seed
Ceara 0 Joinville 3 No
-1.8
Parana 2 Icasa 0 +14.3
+0.3
Bragantino 1 Figueirense 1 +7.7
+0.1
Points
Chance Will Win Championship