How are these numbers calculated?

Big Games

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

Week of 3/30100.0*Chance wins title100.0*Top Four Seed100.0*Average seed
Puck Norris 2 Logan Urology 3 No
Trashers 2 Big Willies 3 -48.5
-2.0
Pistol Shrimp 0 Moose Knuckles 5 +4.0
-0.2
Week of 4/6100.0*Chance wins title100.0*Top Four Seed100.0*Average seed
Big Willies 3 Hatrick Kane 0 -0.2
If winner is:HomeAway
Moose Knuckles vs TrashersNo+31.8
-0.2+1.6
Trashers vs Pistol Shrimp+5.4No
+0.1-0.1
Logan Urology vs Ugly Pucklings+1.2-1.2

What If

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

100100100100100100100100
If finish:ChanceTop FourChance will finish season at seed
TPW-Lwins titleSeed12345678Count
202-0No79.2%791567,774,947
181-1NoNo148663,763,509
160-2NoNo10064,789,752
Total:No4.5%51788136,328,208
Points
Chance Will Win Championship