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
Alberta 32 Manitoba 42 +13.5
+0.5
UBC 29 Saskatchewan 45 -4.7
Regina 8 Calgary 72 +1.2
If winner is:HomeAway
Week of 10/2100.0*Chance in playoffs100.0*Average seed
Manitoba vs Regina+4.0-12.2
+0.2-0.6
Calgary vs Saskatchewan+1.1-3.4
+0.1-0.2
Alberta vs UBC-1.2+1.6

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456Count
124-0In494225,826,982
103-1In07125361,136,303
82-295.4%01448335051,605,918
61-342.443852518,480,126
40-4Out6942,434,099
Total:90.3%147261682159,483,428
Games Above .500
Chance Will Make Playoffs