How are these numbers calculated?

Big Games

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

Week of 11/9100.0*Serie A*100.0*Average seed
ASA 2 Atletico-PR 3 No
Bragantino 1 Joinville 0 No
-0.2
Sao Caetano 4 Boa Esporte 2 -0.3
-0.1
Avai 1 Guarani 0 -0.1
Week of 11/17100.0*Serie A*100.0*Average seed
Barueri 2 Avai 0 +0.2
Joinville 1 Vitoria 1 -0.0
Week of 11/23100.0*Serie A*100.0*Average seed
Avai 1 Criciuma 1 +0.2
Goias 2 Joinville 1 -0.1
Points
Chance Will Win Championship