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
PuckBuddies 1 Blizzard 8 +17.3
+0.5
Hagen 4 YYZ 6 -11.4
-0.2
YYZ 3 DragonSlayers 7 +6.8
+0.1
Winterhawks 2 DragonSlayers 6 +6.6
+0.2
Lumberhacks 8 Meatballs 0 -4.8
-0.2
Week of 4/2100.0*Chance in playoffs100.0*Average seed
YYZ 6 Blizzard 7 In
+0.9
Winterhawks 8 Meatballs 3 -11.6
-0.1
Hagen 4 Lumberhacks 5 -0.6
Points
Chance Will Make Playoffs