How are these numbers calculated?

Big Games

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

Week of 5/9100.0*Average seed
Toulon 37 Castres 21 +0.3
Toulouse 67 Brive 19 -0.1
If winner is:HomeDrawAway
Grenoble vs Clermont+0.1+0.1-0.1
If winner is:HomeDrawAway
Week of 5/16100.0*Average seed
Clermont vs Toulon-0.3+0.2+0.3
Grenoble vs Toulouse+0.1-0.0-0.1

What If

Chances based on how well the Toulon finish out the regular season.   Explain

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedRelegated
TPW-D-LplayoffsEuropean Rugby Champions Cup Berth1234567891011121314to ProD2Count
66-68InYes100No3,326,427*
641-0-1InYes9010No5,528,463
0-2-0InYes100No28,484
620-1-1InYes603460No558,492
600-0-2InYes2053243No2,768,866
Total:InYes751861No12,210,732

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs