How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Libertadores100.0*Average seed
Santos 1 Gremio 0 -0.8
-0.3
Vitoria 1 Cruzeiro 1 +0.2
Avai 2 Palmeiras 1 +0.1
+0.2
Week of 11/25100.0*Libertadores100.0*Average seed
Cruzeiro 0 Vasco da Gama 1 Yes
Gremio 1 Atletico-GO 1 Yes
-0.2
Flamengo 1 Santos 2 -0.3
-0.2
Palmeiras 2 Botafogo 0 -0.1
-0.2
If winner is:HomeEmpateAway
Week of 12/3100.0*Libertadores100.0*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-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
651-0-0NoYes5446No20,513,963
630-0-1NoYes4951No11,513,972
620-1-0NoYes2575No15,538,625
Total:NoYes234037No47,566,560
Points
Chance Will Win Championship