How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Serie A100.0*Average seed
Tupi 1 Nautico 4 +22.4
+0.9
Bahia 3 Bragantino 2 -9.3
-0.1
Londrina 0 Avai 1 +1.0
+0.2
Criciuma 1 Vasco da Gama 0 +1.0
Brasil de Pelotas 1 CRB 0 +0.6
+0.1
Ceara 1 Parana 1 +0.0
Vila Nova 2 Paysandu 2 +0.0
If winner is:HomeEmpateAway
Week of 11/25100.0*Serie A100.0*Average seed
Nautico vs Oeste+47.4NoNo
+0.6-0.4-0.4
Vasco da Gama vs Ceara-14.6+8.9+9.0
-0.2+0.1+0.1
Atletico GO vs Bahia+9.0-5.5-5.5
+0.2-0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleSerie A1234567891011121314151617181920Serie CCount
631-0-0No76.4%245324No5,372,012
60-61NoNo100No8,768,308*
Total:No29.0%92071No14,140,320

* Row combines multiple less frequent records.

Points
Chance Will Win Championship