How are these numbers calculated?

Big Games

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

Week of 8/19100.0*Chance in playoffs100.0*Average seed
ElderSkatesmen 3 Bulls 8 -32.2
-0.3
Rogues 3 Stiffs 5 +18.6
+0.2
Rogues 0 AlbinoRhinos 5 +8.3
+0.1
Week of 8/26100.0*Chance in playoffs100.0*Average seed
Bamboozalers 5 ElderSkatesmen 1 Out
-0.3
Week of 9/5None
Points
Chance Will Make Playoffs