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 -13.8
-0.4
Atlético-PR 6 Náutico 1 -3.5
-0.1
Ponte Preta 1 Grêmio 1 +1.4
+0.1
Criciúma 1 Vitória 1 +1.2
+0.0
São Paulo 1 Botafogo 1 +1.1
+0.0
Week of 11/30100.0*Libertadores100.0*Average seed
Grêmio 1 Goiás 0 -17.6
-0.6
Coritiba 2 Botafogo 1 +17.1
+0.2
Santos 2 Atlético-PR 1 +1.6
+0.1
Fluminense 2 Atlético-MG 2 +0.9
+0.0
Vitória 4 Flamengo 2 -0.8
-0.0
If winner is:HomeDrawAway
Week of 12/7100.0*Libertadores100.0*Average seed
Goiás vs SantosYes-28.8-63.2
+0.7-0.3-1.4
Botafogo vs Criciúma-9.6+11.8+11.9
-0.2+0.1+0.3
Atlético-MG vs Vitória+2.8+2.8-9.6
+0.1+0.1-0.2
Atlético-PR vs Vasco-0.1+0.0+0.4

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibertadores1234567891011121314151617181920Serie BCount
621-0-0NoYes2377No24,880,614
600-1-0No34.5%355313No12,780,477
590-0-1No0.101783No8,619,069
Total:No63.3%12511819No46,280,160
Points
Chance Will Win Championship