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
Oeste 2 Figueirense 2 -6.1
-0.2
Icasa 2 Paysandu 1 -5.8
-0.2
Guaratingueta 0 Ceara 1 -5.8
-0.2
Sport Recife 2 Parana 0 -4.8
-0.1
America-MG 3 Atletico-GO 0 -0.8
-0.2
Sao Caetano 3 Joinville 2 +0.7
+0.1
Avai 0 America-RN 1 +0.4
+0.1
Palmeiras 3 Boa Esporte 0 +0.0
Week of 11/22100.0*Serie A100.0*Average seed
Figueirense 2 ASA 0 +15.8
+0.9
Icasa 1 Chapecoense 2 +10.7
+0.3
Palmeiras 4 Ceara 1 +10.6
+0.3
Boa Esporte 2 Sport Recife 3 -8.2
-0.2
Joinville 2 America-MG 1 +0.6
+0.1
Week of 11/29100.0*Serie A100.0*Average seed
Parana 2 Icasa 0 +14.8
+0.3
Ceara 0 Joinville 3 +14.7
+0.3
Bragantino 1 Figueirense 1 -11.4
-0.1
Points
Chance Will Win Championship