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
Montpellier 33 Bayonne 16 Out
No
+11.0
-0.6
Bordeaux-Bègles 26 Oyonnax 23 +0.2
+0.2
+1.1
-0.1
Toulon 37 Castres 21 -1.7
+0.1
Toulouse 67 Brive 19 -2.3
+0.1
If winner is:HomeDrawAway
Grenoble vs Clermont+2.8-1.6-3.0
-0.1+0.1+0.1
Lyon vs La Rochelle-2.6+2.3+2.3
+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
Bordeaux-Bègles vs Bayonne+12.9-25.6-31.0
-0.5+0.5+1.4
Castres vs Brive+4.7-7.2-8.7
-0.0+0.3+0.1
La Rochelle vs Racing Métro 92+2.3+2.4-4.2
-0.1-0.1+0.2
Grenoble vs Toulouse+2.8-1.3-2.7
-0.1+0.1+0.1
Oyonnax vs Lyon+0.0+0.0-0.1

What If

Chances based on how well the Bayonne 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
462-0-0OutNo22412781No5,283,789
441-1-0OutNo634441600.2%1,454,522
421-0-1OutNo0116523030.318,307,480
0-2-0OutNo010553535.485,789
400-1-1OutNo6504444.11,949,951
380-0-2OutNo973Yes10,193,857
Total:OutNo366112944144.6%37,275,388
Games Above .500
Chance Will Make Playoffs