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*Chance in playoffs100.0*European Rugby Champions Cup Berth100.0*Relegated to ProD2100.0*Average seed
Toulouse 67 Brive 19 Out
No
+10.7
-0.9
Bordeaux-Bègles 26 Oyonnax 23 +0.7
+0.7
+0.7
-0.1
Montpellier 33 Bayonne 16 -0.3
-0.3
-3.0
+0.0
Toulon 37 Castres 21 -1.6
+0.1
If winner is:HomeDrawAway
Grenoble vs Clermont+2.8+2.1-3.0
-0.2-0.1+0.2
Lyon vs La Rochelle-0.8*+0.0+0.8
+0.1+0.1-0.1
If winner is:HomeDrawAway
Week of 5/16100.0*Chance in playoffs100.0*European Rugby Champions Cup Berth100.0*Relegated to ProD2100.0*Average seed
Castres vs Brive+19.3-5.2No
-1.0-0.2+1.0
Bordeaux-Bègles vs Bayonne-7.1+5.0+6.6
+0.2-0.2-0.1
Grenoble vs Toulouse+2.7+2.2-3.0
-0.2-0.1+0.2
La Rochelle vs Racing Métro 92+0.8*+0.1-0.8
-0.1+0.1+0.1
Paris vs Montpellier+0.1-0.1-0.1

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

What If

Chances based on how well the Brive 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
522-0-0OutNo21844314No2,768,877
501-1-0OutNo1648333No557,465
481-0-1OutNo229462132.8%5,531,619
0-2-0OutNo221432955.228,141
460-1-1OutNo114444140.5556,693
440-0-2OutNo2296968.92,767,937
Total:OutNo14122224181918.7%12,210,732
Games Above .500
Chance Will Make Playoffs