How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Serie B100.0*Average seed
Botafogo 3 Sao Paulo 2 -20.8
+0.8
Sport Recife 0 Fluminense 3 +12.9
-0.2
Corinthians 2 Nautico 3 +1.8
-0.1
Santo Andre 4 Avai 2 +1.7
-0.1
Santos 4 Coritiba 0 -1.0
Vitoria 2 Barueri 1 +0.6
-0.1
Atletico-PR 1 Cruzeiro 1 +0.3
Week of 11/29100.0*Serie B100.0*Average seed
Atletico-PR 2 Botafogo 0 +20.9
-1.0
Fluminense 4 Vitoria 0 +13.9
-0.2
Cruzeiro 4 Coritiba 1 -6.2
+0.2
Santo Andre 5 Nautico 3 +0.4
Avai 2 Santos 2 +0.0
If winner is:HomeDrawAway
Week of 12/5100.0*Serie B100.0*Average seed
Botafogo vs PalmeirasNo+10.1Yes
+0.8-0.1-0.8
Coritiba vs Fluminense+10.1+10.1-17.9
-0.2+0.2+0.1
Internacional vs Santo Andre+0.1+0.1-0.2

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibetadores1234567891011121314151617181920Serie BCount
471-0-0NoNo2872No5,319,498
450-1-0NoNo366464.0%4,140,096
440-0-1NoNo6436Yes5,323,926
Total:NoNo1036411353.9%14,783,520
Points
Chance Will Win Championship