How are these numbers calculated?

Big Games

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

Week of 1/11100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Edinburgh 17 Munster 26 -3.0
-0.1
Ospreys 15 Tigers 15 *+0.4
Toulouse 35 Treviso 14 -0.2
Zebre 6 Biarritz 32 +8.1
+0.2
Saints 18 Castres 12 +19.2
+0.3
Ulster 23 Glasgow 6 +0.6
Leinster 33 Scarlets 14 -0.6
-0.0
Week of 1/18100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Biarritz 9 Quins 16 -0.1
Chiefs 20 Leinster 29 -0.1
Treviso 17 Ospreys 14 -0.1
Tigers 9 Toulouse 5 -0.5

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Games Above .500  (Full Screen)
Chance Will Make Playoffs  (Full Screen)