How are these numbers calculated?

Big Games

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

Week of 2/18100.0*Chance wins title100.0*Average seed
Uruguay 23 Brazil 12 -0.4
-0.9
Canada 34 United States 51 -0.3
+0.1
Chile 10 Argentina XV 45 -0.2
+0.0
Week of 2/25100.0*Chance wins title100.0*Average seed
Uruguay 17 Canada 13 +0.2
Argentina XV 79 Brazil 7 -0.1
Chile 9 United States 57 +0.0
Week of 3/3100.0*Chance wins title100.0*Average seed
Brazil 24 Canada 23 +0.5

What If

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

100100100100100100
If finish:ChanceChance will finish season at seed
TPW-OTLDwins title123456Count
80-000No10047,225,803,940
Total:No10047,225,803,940
Points
Chance Will Win Championship