How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Friday100.0*Chance in playoffs100.0*Average seed
Lethbridge 0 Alberta 1 -8.8
-0.2
Saturday100.0*Chance in playoffs100.0*Average seed
Lethbridge 3 MacEwan 0 In
+0.9
Mount Royal 2 Calgary 0 +0.1
SundayNone
Points
Chance Will Make Playoffs