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
Bordeaux-Bègles 26 Oyonnax 23 +2.1
+2.1
+0.1
-0.1
Montpellier 33 Bayonne 16 -0.2
-0.2
-0.2
-0.0
Toulouse 67 Brive 19 -0.1
-0.1
-0.8
+0.1
Toulon 37 Castres 21 -0.6
+0.1
If winner is:HomeDrawAway
Lyon vs La Rochelle-8.2-5.5+8.6
-8.2-5.5+8.6
+4.2-3.3No
-1.0+0.1+0.9
Racing Métro 92 vs Paris-0.5-0.5+1.3
-0.5-0.5+1.3
Grenoble vs Clermont+0.5+0.5-0.6
-0.1-0.1+0.2
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
La Rochelle vs Racing Métro 92+5.5-6.8-8.3
+5.5-6.8-8.3
No-3.2+6.8
+0.7-0.1-1.2
Oyonnax vs Lyon-0.8+1.0+4.5
-0.8+1.0+4.5
-0.0-0.0+0.3
Paris vs Montpellier+0.6+0.2-1.8
+0.6+0.2-1.8
+0.1-0.0-0.2
Bordeaux-Bègles vs Bayonne-0.6+1.4+1.5
-0.6+1.4+1.5
-0.1+0.1+0.2
-0.0+0.2+0.0
Clermont vs Toulon-0.1-0.1+0.2
-0.1-0.1+0.2
Grenoble vs Toulouse-0.1*-0.0+0.1
-0.1*-0.0+0.1
+0.5+0.5-0.5
-0.2-0.1+0.2
Castres vs Brive+1.1-1.6-2.1
+0.0-0.0-0.1

* 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 La Rochelle 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
583-0-069.2%69.2%015542740No4,167,374
562-1-011.211.2011562850No1,263,048
542-0-10.80.8011038456No12,558,831
1-2-00.80.8011037456No126,167
521-1-1OutNo21944314No2,466,929
0-3-0OutNo32144285No4,105
501-0-2OutNo2547244No11,905,635
0-2-1OutNo2849212No119,241
480-1-2OutNo223502222.2%1,133,245
460-0-3OutNo6544039.63,530,813
Total:8.4%8.4%027815272010743.8%37,275,388
Games Above .500
Chance Will Make Playoffs