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 -15.5
-0.5
Atlético-PR 6 Náutico 1 -7.2
-0.2
São Paulo 1 Botafogo 1 +2.3
+0.1
Criciúma 1 Vitória 1 +1.4
+0.0
Ponte Preta 1 Grêmio 1 +0.9
+0.1
Week of 11/30100.0*Libertadores100.0*Average seed
Grêmio 1 Goiás 0 -26.3
-0.9
Coritiba 2 Botafogo 1 +13.0
+0.2
Vitória 4 Flamengo 2 -2.8
-0.1
Santos 2 Atlético-PR 1 +1.8
+0.2
Fluminense 2 Atlético-MG 2 +1.2
+0.0
If winner is:HomeDrawAway
Week of 12/7100.0*Libertadores100.0*Average seed
Goiás vs SantosYes-6.8-47.4
+1.1-0.1-1.0
Atlético-MG vs Vitória+6.3+6.5-11.3
+0.1+0.1-0.2
Botafogo vs Criciúma-11.3+6.4+6.4
-0.3-0.0+0.3
Atlético-PR vs Vasco-0.2-0.0+0.2

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
621-0-0NoYes4951No5,582,946
600-1-0No40.7%414613No4,261,397
590-0-1No0.103664No5,582,377
Total:No47.5%18302627No15,426,720
Points
Chance Will Win Championship