How are these numbers calculated?

Big Games

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

Week of 3/26100.0*Chance in playoffs100.0*Average seed
Hagen 4 YYZ 6 +21.8
+0.3
YYZ 3 DragonSlayers 7 -10.6
-0.2
PuckBuddies 1 Blizzard 8 -7.8
-0.1
Winterhawks 2 DragonSlayers 6 +3.2
+0.0
Lumberhacks 8 Meatballs 0 -0.3
-0.1
Week of 4/2100.0*Chance in playoffs100.0*Average seed
YYZ 6 Blizzard 7 -25.0
-0.4
Winterhawks 8 Meatballs 3 -13.1
-0.2
Points
Chance Will Make Playoffs