How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Libertadores100.0*Average seed
Atlético-PR 6 Náutico 1 -3.0
-0.2
Ponte Preta 1 Grêmio 1 -1.0
-0.1
Atlético-MG 4 Goiás 1 +0.9
+0.1
São Paulo 1 Botafogo 1 +0.8
+0.1
Criciúma 1 Vitória 1 +0.8
+0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Grêmio 1 Goiás 0 Yes
+0.7
Coritiba 2 Botafogo 1 +6.9
+0.1
Santos 2 Atlético-PR 1 +1.6
+0.2
Vitória 4 Flamengo 2 -1.2
Fluminense 2 Atlético-MG 2 +0.7
If winner is:HomeDrawAway
Week of 12/7100.0*Libertadores100.0*Average seed
Portuguesa vs Grêmio-0.2+0.1+0.1
Atlético-PR vs Vasco-0.2+0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibertadores1234567891011121314151617181920Serie BCount
65-67NoYes100No9,843,545*
640-0-1NoYes6436No5,583,175
Total:NoYes8713No15,426,720

* Row combines multiple less frequent records.

Points
Chance Will Win Championship