How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 10/28100.0*Chance in playoffs100.0*Average seed
Wheat 2 Gotham 0 +19.9
+0.5
Whiskey 6 N-Bot 1 -3.2
-0.1
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Gotham 8 Whiskey 3 -0.4
Porn 1 Wheat 4 +0.3
Points
Chance Will Make Playoffs