How are these numbers calculated?

Big Games

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

Week of 2/20100.0*Chance wins title100.0*Championship100.0*Average seed
United States 64 Chile 0 +11.7
+11.7
+0.4
Uruguay 21 Argentina XV 24 -10.7
-10.7
-0.1
Canada 52 Brazil 25 -0.7
-0.7
-0.0
Week of 2/27100.0*Chance wins title100.0*Championship100.0*Average seed
Brazil 24 United States 23 -65.8
-65.8
-0.9
Argentina XV 54 Canada 21 -10.8
-10.8
-0.0
If winner is:HomeDrawnAway
Week of 3/5100.0*Chance wins title100.0*Championship100.0*Average seed
Brazil vs Argentina XV+48.4NoNo
+48.4NoNo
+0.5-0.1-0.1
Uruguay vs United StatesNoNo+4.5
NoNo+4.5
-0.3+0.1+0.2
Chile vs Canada+0.1+0.1-0.0

What If

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

100100100100100100
If finish:ChanceChance will finish season at seed
TPW-OTLDwins titleChampionship123456Count
141-0009.6%9.6%10906,278,697,908
120-001NoNo100390,265,478
100-010NoNo6920105,057,647,842
Total:5.1%5.1%5829411,726,611,228
Points
Chance Will Win Championship

Lottery

Ye of little faith, already thinking about next year. Here are the big games and what ifs for draft seeds.

Big Games

Week of 2/20100.0*Lottery seed
United States 64 Chile 0 -0.4
Uruguay 21 Argentina XV 24 +0.1
Canada 52 Brazil 25 +0.0
Week of 2/27100.0*Lottery seed
Brazil 24 United States 23 +0.9
Argentina XV 54 Canada 21 +0.0
If winner is:HomeDrawnAway
Week of 3/5100.0*Lottery seed
Brazil vs Argentina XV-0.5+0.1+0.1
Uruguay vs United States+0.3-0.1-0.2
Chile vs Canada-0.1-0.1+0.0

What If

100100100100100100
If finish:Chance will finish season at seed
TPW-OTLD123456
141-0001090
120-001100
100-010692010
Total:58294