How are these numbers calculated?

Big Games

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

Saturday100.0*Chance in playoffs100.0*Average seed
Red Deer 4 Edmonton 7 -14.7
-0.4
Saskatoon 4 Prince Albert 6 -10.9
-0.1
Brandon 6 Regina 3 -0.1
-0.2
Sunday100.0*Chance in playoffs100.0*Average seed
Edmonton 0 Red Deer 5 In
+0.5
Points
Chance Will Make Playoffs