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*Chance wins title100.0*Serie A100.0*Average seed
Guarani 1 America-RN 2 +1.4
+18.0
+0.6
Coritiba 2 Atletico-MG 3 No
+8.2
+0.1
Avai 1 Nautico 1 +0.1
*+0.1
+0.0
Sao Raimundo-AM 3 Santo Andre 2 +1.7
+0.1
Week of 11/18100.0*Chance wins title100.0*Serie A100.0*Average seed
America-RN 1 Santo Andre 2 -5.0
-0.4
Paulista 9 Paysandu 0 -2.3
Gama 1 Coritiba 1 +1.3
Nautico 2 Ituano 0 -0.4
-0.2
Guarani 2 Sport Recife 0 +0.1
Week of 11/25100.0*Chance wins title100.0*Serie A100.0*Average seed
Brasiliense 3 Paulista 4 -23.1
-0.2
Atletico-MG 2 America-RN 2 Yes
Santo Andre 1 Nautico 1 -0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship