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*Wooden Spoon100.0*Average seed
Canada 52 Brazil 25 No
+24.9
-0.8
USA 64 Chile 0 -1.0
-4.2
+0.1
Uruguay 21 Argentina 24 -0.2
-3.9
+0.1
Week of 2/27100.0*Chance wins title100.0*Wooden Spoon100.0*Average seed
Brazil 24 USA 23 -24.0
+0.3
Chile 20 Uruguay 23 -12.8
+0.1
Argentina 54 Canada 21 +0.1
+0.1
If winner is:HomeDrawAway
Week of 3/5100.0*Chance wins title100.0*Wooden Spoon100.0*Average seed
Chile vs Canada+25.2+20.2No
-0.0-0.4+0.1
Brazil vs ArgentinaNo+20.2+25.2
+0.5-0.4-0.4
Uruguay vs USA-0.2-0.2+0.2

What If

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

100100100100100100
If finish:ChanceChance will finish season at seedWooden
TPW-D-Lwins title123456SpoonCount
81-0-0No19378No3,969,577,612
60-1-0No524847.5%417,128,697
40-0-1No485252.53,969,627,439
Total:No91622727.3%8,356,333,748
Games Above .500
Chance Will Win Championship