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
Sharks 6 Montpellier 27 +11.6
+0.6
Ulster 23 Glasgow 6 +2.8
+0.1
Saints 18 Castres 12 +2.7
+0.1
Edinburgh 17 Munster 26 -0.1
Toulon 45 Blues 25 -0.7
Week of 1/18100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Montpellier 23 Toulon 3 +6.8
Yes
+0.1
Munster 29 Racing Métro 6 -0.2
Saracens 40 Edinburgh 7 In
+0.2
Treviso 17 Ospreys 14 In
Games Above .500
Chance Will Make Playoffs