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
Taints 101.38 ElToro 80.86 +8.3
+0.2
Annexation 88.48 Memo 65.82 +6.7
+0.3
IRSlots 147.46 Chocolate 86.52 +0.3
+0.2
ITSAWASH 128.06 Mattress 46.1 +0.4
Week of 11/22100.0*Chance in playoffs100.0*Average seed
IRSlots 71.6 Taints 42.86 +13.4
+0.1
Duchess 98.24 ITSAWASH 69.18 -7.1
-0.6
Memo 121.98 Whites 84.5 -5.4
-0.1
ElToro 80.74 Mattress 84.22 +3.1
+0.1
Games Above .500
Chance Will Make Playoffs