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
Leicester 25 Exeter 18 +13.1
+2.6
+0.4
Northampton 52 Wasps 30 +1.6
+0.1
+0.0
Saracens 42 Harlequins 14 -1.6
+0.2
-0.0
London Welsh 14 Bath 29 -0.5
-0.0
Sale Sharks 23 Gloucester 6 -0.1
-0.7

What If

Chances based on how well the Leicester 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
664-0-0InYes07426No130,364,403
643-1-0InYes057386No30,255,328
623-0-199.6%Yes1550350No531,002,129
2-2-099.5Yes1247410No2,520,634
602-1-187.5Yes2256013No84,204,754
1-3-090.4Yes3286010No88,259
582-0-265.0Yes0560341No665,640,932
1-2-170.1Yes0565291No4,212,105
0-4-076.1Yes47224No1,094
561-1-223.099.8%012263140No62,070,828
0-3-122.299.712162150No64,921
541-0-33.797.800447472No274,815,292
0-2-27.898.40853372No1,284,653
520-1-30.171.600155628No9,069,936
500-0-4Out54.0252460No10,419,684
Total:67.9%99.3%011203723910No1,806,014,952
Games Above .500
Chance Will Make Playoffs