How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Average seed
Santos 1 Gremio 0 -0.3
Week of 11/25100.0*Average seed
Palmeiras 2 Botafogo 0 -0.3
Gremio 1 Atletico-GO 1 -0.2
Flamengo 1 Santos 2 -0.2
If winner is:HomeDrawAway
Week of 12/3100.0*Average seed
Atletico-MG vs Gremio-0.6-0.4+0.7
Santos vs Avai-0.2+0.0+0.4
Atletico-PR vs Palmeiras+0.2+0.2-0.2

What If

Chances based on how well the Gremio finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibertadores1234567891011121314151617181920Serie BCount
651-0-0NoYes5446No20,782,446
630-1-0NoYes4951No11,671,555
620-0-1NoYes2575No15,755,759
Total:NoYes234037No48,209,760
Points
Chance Will Win Championship