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
Whites 89.66 10Deep 48.92 Out
-0.3
Annexation 88.48 Memo 65.82 -0.3
ITSAWASH 128.06 Mattress 46.1 +0.2
IRSlots 147.46 Chocolate 86.52 +0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
ElToro 80.74 Mattress 84.22 -0.2
IRSlots 71.6 Taints 42.86 -0.1
Games Above .500
Chance Will Make Playoffs