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
Sport Recife 2 Parana 0 +26.7
+1.1
Icasa 2 Paysandu 1 -6.5
-0.2
Guaratingueta 0 Ceara 1 -6.3
-0.2
Oeste 2 Figueirense 2 +2.4
+0.1
America-MG 3 Atletico-GO 0 -1.2
-0.1
Sao Caetano 3 Joinville 2 +1.0
+0.1
Avai 0 America-RN 1 +0.6
+0.1
Week of 11/22100.0*Serie A100.0*Average seed
Boa Esporte 2 Sport Recife 3 +26.7
+0.7
Palmeiras 4 Ceara 1 +8.7
+0.2
Icasa 1 Chapecoense 2 +8.7
+0.2
Figueirense 2 ASA 0 -3.2
-0.1
Joinville 2 America-MG 1 +2.2
+0.1
Week of 11/29None
Points
Chance Will Win Championship