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 +4.1
+4.1
No
+0.7
Bordeaux-Bègles 26 Oyonnax 23 +2.3
+2.3
+0.1
-0.1
Toulon 37 Castres 21 +0.1
+0.1
-0.5
+0.0
Toulouse 67 Brive 19 +0.1
+0.1
-0.2
+0.1
If winner is:HomeDrawAway
Racing Métro 92 vs Paris-1.0-1.0+2.5
-1.0-1.0+2.5
Lyon vs La Rochelle+1.1-0.2-1.1
+1.1-0.2-1.1
+0.2-0.1-0.2
Grenoble vs Clermont-0.3+0.4+0.3
-0.3+0.4+0.3
-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
Paris vs Montpellier-14.4+14.8+41.2
-14.4+14.8+41.2
-0.5+0.3+1.4
Oyonnax vs Lyon-3.7+4.1+21.5
-3.7+4.1+21.5
-0.1+0.1+0.4
Bordeaux-Bègles vs Bayonne-0.9+0.8+2.3
-0.9+0.8+2.3
-0.1-0.0+0.3
La Rochelle vs Racing Métro 92+0.4-1.2-0.6
+0.4-1.2-0.6
-0.1-0.1+0.1
Grenoble vs Toulouse-0.6+0.5+0.5
-0.6+0.5+0.5
-0.1+0.1+0.1
Clermont vs Toulon-0.2-0.1+0.3
-0.2-0.1+0.3
Castres vs Brive+0.0+0.0-0.1

What If

Chances based on how well the Montpellier 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
562-0-094.0%94.0%11147366No5,033,530
541-1-060.660.64573460No1,449,892
521-0-18.78.708592740No18,701,077
0-2-08.68.608592840No86,192
500-1-10.80.811445365No1,955,691
480-0-2OutNo42543253No10,049,006
Total:19.5%19.5%0171134231671No37,275,388
Games Above .500
Chance Will Make Playoffs