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 +3.5
+14.0
+0.6
London Welsh 14 Bath 29 -1.6
-1.2
-0.1
Saracens 42 Harlequins 14 -0.8
+0.8
+0.1
Northampton 52 Wasps 30 +0.6
+4.6
+0.1
Leicester 25 Exeter 18 +0.1

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
564-0-061.3%Yes11644354No32,403,109
543-1-028.699.5%042547241No7,435,309
523-0-13.789.604325410No129,141,078
2-2-02.285.302245915No642,900
502-1-10.575.600106524No22,309,324
1-3-00.053.5045047No24,793
482-0-2Out35.9135613No193,677,118
1-2-1Out33.6033652No1,283,069
0-4-0Out32.63367No334
461-1-2Out24.8256411No22,306,460
0-3-1Out11.7127316No24,618
441-0-3Out3.8455401No129,127,897
0-2-2Out4.4461341No641,724
420-1-3Out1.312956140No7,432,545
400-0-4OutNo558352No32,399,530
Total:4.6%43.8%0141029391520No578,849,808
Games Above .500
Chance Will Make Playoffs