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
CRB 0 Paysandu 1 -11.1
-0.9
Bragantino 1 Vasco da Gama 2 -0.8
Luverdense 2 Bahia 2 +0.5
+0.1
Sampaio Correa 1 Londrina 3 -0.2
-0.2
Ceara 2 Vila Nova 3 +0.2
+0.1
Brasil de Pelotas 1 Oeste 1 +0.0
Week of 11/18100.0*Serie A100.0*Average seed
Bahia 3 Bragantino 2 No
-0.0
Brasil de Pelotas 1 CRB 0 No
-0.9
Tupi 1 Nautico 4 -0.7
-0.1
Londrina 0 Avai 1 +0.4
+0.1
Ceara 1 Parana 1 +0.1
Luverdense 1 Goias 0 -0.1
Vila Nova 2 Paysandu 2 +0.1
Criciuma 1 Vasco da Gama 0 -0.1
Week of 11/25100.0*Serie A100.0*Average seed
CRB 3 Luverdense 0 +1.8
Paysandu 1 Criciuma 2 -0.4
Joinville 4 Vila Nova 2 +0.3
Bragantino 0 Londrina 1 -0.2
Vasco da Gama 2 Ceara 1 +0.2
Avai 1 Brasil de Pelotas 1 +0.1
Points
Chance Will Win Championship