How are these numbers calculated?

Big Games

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

Week of 3/16100.0*Chance in playoffs100.0*Average seed
Brewskis 5 BluesBrothers 1 In
+0.5
IceHogs 2 Hansons 2 -19.6
-0.3
MilfordFire 4 IceHogs 7 +1.9
-0.1
RawDawgz 5 Brewers 7 -1.0
-0.2
Week of 3/23None
Week of 4/1None
Points
Chance Will Make Playoffs