How are these numbers calculated?

Big Games

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

Week of 9/25100.0*Chance in playoffs100.0*Average seed
UBC 29 Saskatchewan 45 -10.9
-0.5
Alberta 32 Manitoba 42 -1.3
Regina 8 Calgary 72 +0.8
If winner is:HomeAway
Week of 10/2100.0*Chance in playoffs100.0*Average seed
Alberta vs UBC-15.1+18.8
-0.4+0.5
Manitoba vs Regina-1.5+4.5
-0.0+0.1
Calgary vs Saskatchewan+0.3-1.0
+0.0-0.1

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456Count
124-0In4967,257,786
103-1In07228134,960,945
82-296.4%0941464060,709,184
61-325.002575044,725,117
40-4Out95511,830,396
Total:70.2%0242225290159,483,428
Games Above .500
Chance Will Make Playoffs