How are these numbers calculated?

Big Games

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

Week of 3/14100.0*Chance in playoffs100.0*Average seed
IceHawks 4 Ice Men 1 -30.1
-0.8
Saints 6 Thunder 9 +16.5
Spartans 5 Cobras 3 -6.3
IceDogs 6 Rattlers 1 -1.1
-0.0
Stealth 2 Hornets 4 -0.5
Week of 3/21100.0*Chance in playoffs100.0*Average seed
IceHawks 4 Ice Devils 3 -28.7
-0.4
Outlaws 7 Shock 4 -5.4
-0.1
Week of 3/29None
Points
Chance Will Make Playoffs