How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Chance in playoffs100.0*Average seed
IRSlots 147.46 Chocolate 86.52 -0.3
-0.2
Taints 101.38 ElToro 80.86 +2.4
Annexation 88.48 Memo 65.82 +1.7
Week of 11/22100.0*Chance in playoffs100.0*Average seed
IRSlots 71.6 Taints 42.86 -14.3
-1.1
Games Above .500
Chance Will Make Playoffs