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 +14.9
+2.2
Whites 89.66 10Deep 48.92 -0.1
Annexation 88.48 Memo 65.82 -0.6
ITSAWASH 128.06 Mattress 46.1 +0.2
Week of 11/22100.0*Chance in playoffs100.0*Average seed
IRSlots 71.6 Taints 42.86 +13.8
+2.0
Memo 121.98 Whites 84.5 +0.1
Duchess 98.24 ITSAWASH 69.18 +0.2
Sass 120.98 Chocolate 84.88 +0.1
Games Above .500
Chance Will Make Playoffs