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*Average seed
Parana 2 Ipatinga 0 +0.4
Ceara 1 CRB 2 +0.2
ASA 2 Atletico-PR 3 +0.1
Sao Caetano 4 Boa Esporte 2 +0.1
Avai 1 Guarani 0 +0.0
Week of 11/17100.0*Average seed
Ceara 1 Bragantino 2 +0.1
America-RN 1 America-MG 1 +0.0
Week of 11/23100.0*Average seed
Atletico-PR 1 Parana 1 -0.1
America-MG 3 Ipatinga 1 -0.1
ABC 2 America-RN 2 +0.0
Points
Chance Will Win Championship