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
Footless Flyers 2 Puck Me Daddy 9 Out
-1.3
Wimpy Ducks 5 Eigenskates 2 -0.3
-0.1
Week of 2/18100.0*Chance in playoffs100.0*Average seed
Wolf Pack 4 Thundercats 4 -0.1
50's 4 Legalize It! 1 +0.0
Week of 2/25100.0*Chance in playoffs100.0*Average seed
Footless Flyers 0 Blades of Wood 7 -0.1
Games Above .500
Chance Will Make Playoffs