How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/11100.0*Serie A100.0*Average seed
Sport Recife 4 Americana 0 +12.0
+1.5
Bragantino 4 Goias 0 -5.5
Vitoria 3 Criciuma 1 -4.6
-0.1
Ponte Preta 1 Boa Esporte 2 +0.1
-0.2
Week of 11/19100.0*Serie A100.0*Average seed
Sport Recife 3 Parana 0 +17.7
+1.1
Bragantino 0 ASA 1 +6.1
+0.2
Vitoria 1 Sao Caetano 2 +3.6
+0.2
Ponte Preta 4 ABC 1 -3.3
-0.1
Boa Esporte 2 Nautico 1 -1.0
-0.2
Americana 2 Vila Nova 1 -0.3
-0.2
Criciuma 1 Gremio Barueri 2 +0.1
Goias 0 Icasa 0 +0.0
Week of 11/25100.0*Serie A100.0*Average seed
Vila Nova 0 Sport Recife 1 +48.3
+1.0
Parana 1 Bragantino 0 +10.7
+0.3
ASA 1 Vitoria 2 -8.0
-0.3
Duque de Caxias 2 Boa Esporte 2 +4.9
+0.2
ABC 3 Americana 1 +1.4
+0.1
Points
Chance Will Win Championship