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
+1.4
Bragantino 4 Goias 0 -5.8
-0.1
Vitoria 3 Criciuma 1 -4.6
-0.1
Ponte Preta 1 Boa Esporte 2 +0.4
-0.2
Week of 11/18100.0*Serie A100.0*Average seed
Sport Recife 3 Parana 0 +16.8
+0.9
Bragantino 0 ASA 1 +7.9
+0.2
Vitoria 1 Sao Caetano 2 +4.8
+0.2
Ponte Preta 4 ABC 1 -4.8
-0.1
Boa Esporte 2 Nautico 1 -1.2
-0.3
Americana 2 Vila Nova 1 -0.1
-0.1
Criciuma 1 Gremio Barueri 2 +0.0
Goias 0 Icasa 0 +0.0
Week of 11/25100.0*Serie A100.0*Average seed
Vila Nova 0 Sport Recife 1 +39.3
+0.8
Parana 1 Bragantino 0 +8.5
+0.3
Duque de Caxias 2 Boa Esporte 2 +6.3
+0.3
ASA 1 Vitoria 2 -3.9
-0.3
ABC 3 Americana 1 +0.5
+0.1
Points
Chance Will Win Championship