How are these numbers calculated?

Big Games

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

Week of 4/20100.0*Average seed
Grenoble 25 Toulon 24 +0.4
Clermont 39 Toulouse 17 +0.1
Week of 5/4100.0*Average seed
Clermont 67 Bordeaux 3 +0.1
Toulon 43 Agen 21 -0.0
Games Above .500
Chance Will Make Playoffs