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-MG 4 Goiás 1 +2.8
+0.6
Atlético-PR 6 Náutico 1 -1.0
-0.0
Ponte Preta 1 Grêmio 1 -0.1
São Paulo 1 Botafogo 1 -0.1
Criciúma 1 Vitória 1 +0.0
Flamengo 1 Corinthians 0 +0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Fluminense 2 Atlético-MG 2 -3.7
-0.1
Coritiba 2 Botafogo 1 +1.2
+0.1
Grêmio 1 Goiás 0 +1.0
+0.0
Vitória 4 Flamengo 2 -0.1
Santos 2 Atlético-PR 1 -0.1
Criciúma 1 São Paulo 0 +0.0
If winner is:HomeDrawAway
Week of 12/7100.0*Libertadores100.0*Average seed
Goiás vs SantosNoNo+18.1
-0.0-0.0+0.1
Botafogo vs CriciúmaNo+5.1+5.1
-0.2+0.3+0.3
Atlético-MG vs Vitória+4.2NoNo
+0.9-0.9-0.9

What If

Chances based on how well the Atlético-MG finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibertadores1234567891011121314151617181920Serie BCount
591-0-0No8.3%84745No23,006,493
570-1-0NoNo8713No12,779,251
560-0-1NoNo8119No10,494,416
Total:No4.1%42322428No46,280,160
Points
Chance Will Win Championship