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 -57.3
-3.3
Annexation 88.48 Memo 65.82 +5.8
+0.1
Taints 101.38 ElToro 80.86 +3.4
+0.1
ITSAWASH 128.06 Mattress 46.1 -0.2
Whites 89.66 10Deep 48.92 -0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
Sass 120.98 Chocolate 84.88 -6.0
-0.4
Duchess 98.24 ITSAWASH 69.18 -6.0
-0.1
IRSlots 71.6 Taints 42.86 -0.6
Games Above .500
Chance Will Make Playoffs