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 +7.5
+0.9
IRSlots 147.46 Chocolate 86.52 -4.6
-0.2
Annexation 88.48 Memo 65.82 -2.7
-0.2
ITSAWASH 128.06 Mattress 46.1 +0.1
Duchess 74.94 Sass 82.52 +0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
Memo 121.98 Whites 84.5 -4.4
-0.8
10Deep 60.12 Annexation 83.34 -2.6
-0.1
IRSlots 71.6 Taints 42.86 -2.3
-0.1
ElToro 80.74 Mattress 84.22 +0.1
Sass 120.98 Chocolate 84.88 +0.1
Duchess 98.24 ITSAWASH 69.18 -0.1
Games Above .500
Chance Will Make Playoffs