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
Sport Recife 0 Fluminense 3 +3.9
-0.1
Botafogo 3 Sao Paulo 2 +1.2
-0.1
Corinthians 2 Nautico 3 +0.8
Santo Andre 4 Avai 2 +0.7
Santos 4 Coritiba 0 -0.6
Atletico-PR 1 Cruzeiro 1 -0.6
-0.3
Vitoria 2 Barueri 1 +0.4
-0.1
Week of 11/29100.0*Serie B100.0*Average seed
Atletico-PR 2 Botafogo 0 No
+1.3
Fluminense 4 Vitoria 0 +8.0
-0.1
Cruzeiro 4 Coritiba 1 -3.8
+0.2
Santo Andre 5 Nautico 3 +0.6
Gremio 4 Barueri 2 +0.1
If winner is:HomeDrawAway
Week of 12/5100.0*Serie B100.0*Average seed
Barueri vs Atletico-PR-1.6-0.6+2.1
Vitoria vs Goias-0.3-0.1+0.3
Santos vs Cruzeiro-0.2+0.1+0.1
Atletico-MG vs Corinthians+0.1+0.1-0.2
Coritiba vs Fluminense-0.1+0.2-0.1

What If

Chances based on how well the Atletico-PR finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibetadores1234567891011121314151617181920Serie BCount
501-0-0NoNo3245203No5,324,534
480-1-0NoNo3664No4,137,420
470-0-1NoNo53660No5,321,566
Total:NoNo12167133121No14,783,520
Points
Chance Will Win Championship