How are these numbers calculated?

Big Games

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

Week of 2/11100.0*Chance in playoffs100.0*Average seed
Wimpy Ducks 5 Eigenskates 2 -0.1
-0.3
Book Hockey 8 Team Else's 2 Out
Puck Dynasty 4 Morning After P 3 -0.2
Footless Flyers 2 Puck Me Daddy 9 +0.0
Puck Me Daddy 8 Ice Road Puckers 1 +0.1
Week of 2/18100.0*Chance in playoffs100.0*Average seed
50's 4 Legalize It! 1 -1.1
Wolf Pack 4 Thundercats 4 -0.3
Week of 2/25None
Games Above .500
Chance Will Make Playoffs