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
Sale Sharks 23 Gloucester 6 +0.9
+7.7
+0.2
Saracens 42 Harlequins 14 -0.3
+0.1
+0.0
London Welsh 14 Bath 29 -0.2
-0.1
Northampton 52 Wasps 30 +0.2
+1.9
+0.0
Leicester 25 Exeter 18 -0.2
+0.4

What If

Chances based on how well the Sale Sharks 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
564-0-023.2%Yes01226710No149,349,265
543-1-08.498.7%00856341No34,629,104
523-0-10.174.500156026No606,821,182
2-2-00.170.00106030No2,769,471
502-1-10.054.50035245No88,449,193
1-3-0Out27.612772No92,805
482-0-2Out16.9017794No625,569,337
1-2-1Out15.4015832No4,105,775
0-4-0Out12.01288No1,117
461-1-2Out10.9117712No54,107,037
0-3-1Out3.137918No61,088
441-0-3Out0.7152471No209,485,610
0-2-2Out0.9163360No1,140,822
420-1-3Out0.202565100No8,407,337
400-0-4OutNo373240No21,025,809
Total:2.1%44.2%002123047800No1,806,014,952
Games Above .500
Chance Will Make Playoffs