How are these numbers calculated?

Big Games

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

Week of 2/12100.0*Chance in playoffs100.0*Average seed
Saskatchewan 2 Calgary 3 (ot)+16.0
+0.2
Lethbridge 4 Regina 3 -10.1
-0.1
Lethbridge 4 Regina 1 -9.8
-0.1
Saskatchewan 2 Calgary 1 (ot)-2.4
-0.1
Week of 2/19100.0*Chance in playoffs100.0*Average seed
Calgary 3 UBC 1 +13.2
+0.1
Calgary 3 UBC 2 +12.7
+0.1
Saskatchewan 4 Manitoba 1 -0.5
Saskatchewan 4 Manitoba 1 +0.5
Week of 2/27100.0*Chance in playoffs100.0*Average seed
Lethbridge 2 Saskatchewan 3 (ot)In
+0.4
Points
Chance Will Make Playoffs