How are these numbers calculated?

Big Games

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

Week of 3/23100.0*Chance in playoffs100.0*Average seed
Samsquanch 7 Meatballs 3 +14.5
+0.3
Blizzard 5 MightyPylons 5 +5.4
+0.0
Week of 3/29100.0*Chance in playoffs100.0*Average seed
MightyPylons 5 Meatballs 6 In
+0.6
Week of 4/8None
Points
Chance Will Make Playoffs