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
America-RN 1 Criciuma 4 -0.2
America-MG 3 ABC 3 +0.1
Avai 1 Guarani 0 -0.1
Week of 11/17100.0*Average seed
America-RN 1 America-MG 1 -0.2
Week of 11/23100.0*Average seed
ABC 2 America-RN 2 -0.4
America-MG 3 Ipatinga 1 -0.2
Atletico-PR 1 Parana 1 +0.1
Points
Chance Will Win Championship