How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance wins title100.0*Average seed
Palmeiras 1 Botafogo 0 +9.9
+0.1
Cruzeiro 2 Santos 2 +4.6
+0.1
Flamengo 2 Coritiba 2 +2.2
Week of 11/26100.0*Chance wins title100.0*Average seed
Flamengo 2 Santos 0 Yes
Palmeiras 1 Chapecoense 0 Yes
Week of 12/4None

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
77-80YesYes100No45,636,960*
Total:YesYes100No45,636,960

* Row combines multiple less frequent records.

Points
Chance Will Win Championship