How are these numbers calculated?

Big Games

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

Week of 3/27100.0*Chance in playoffs100.0*Qualify for EPCR Champions Cup100.0*Average seed
London Welsh 14 Bath 29 +2.5
+0.3
+0.1
Northampton 52 Wasps 30 +0.9
+0.0
Saracens 42 Harlequins 14 -0.5
-0.1
Leicester 25 Exeter 18 -0.3
+0.0
Sale Sharks 23 Gloucester 6 -0.1
-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedRelegated to
TPW-D-LplayoffsQualify for EPCR Champions Cup123456789101112RFU ChampionshipCount
644-0-0InYes4888No471,995,297
623-1-0InYes077220No75,184,709
603-0-1InYes036622No724,732,953
2-2-0100.0%Yes0356220No4,441,910
582-1-197.9Yes1360252No82,538,246
1-3-097.4Yes1158283No115,118
562-0-292.9Yes247447No346,213,984
1-2-190.2Yes13950100No3,114,576
0-4-090.1Yes1375210No1,140
541-1-250.1100.0%07444640No25,531,393
0-3-143.499.905395150No38,632
521-0-335.099.903325780No64,764,806
0-2-221.799.312157211No468,484
500-1-32.084.502344816No2,344,433
480-0-40.579.601285120No4,529,271
Total:95.1%99.9%1424012410No1,806,014,952
Games Above .500
Chance Will Make Playoffs