How are these numbers calculated?

Big Games

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

Week of 9/11100.0*Chance in playoffs100.0*Average seed
Chiefs2 11 Brewers 1 In
+0.3
PapaGenos 3 Rogues 0 In
+0.3
Stiffs 3 Bamboozalers 2 In
+0.3
Week of 9/12100.0*Chance in playoffs100.0*Average seed
TeamMG 0 Stiffs 4 +0.4
Points
Chance Will Make Playoffs