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
Northampton 52 Wasps 30 -4.8
-2.8
-0.2
Saracens 42 Harlequins 14 -0.6
+0.5
Leicester 25 Exeter 18 +0.5
-0.1
London Welsh 14 Bath 29 -0.4
-0.1
-0.0
Sale Sharks 23 Gloucester 6 -0.2
-4.1
-0.0

What If

Chances based on how well the Wasps 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
544-0-080.9%Yes0873190No219,300,819
523-1-020.399.6%011952280No42,574,463
503-0-16.398.000642492No603,274,192
2-2-03.096.80334603No3,064,487
482-1-10.063.00036037No84,951,371
1-3-00.064.7036135No96,751
462-0-20.055.2015445No570,274,983
1-2-1Out53.005347No3,896,159
0-4-0Out50.05050No1,111
441-1-2Out14.615832No50,329,425
0-3-1Out14.815832No57,916
421-0-3Out11.211845No202,470,347
0-2-2Out11.111845No1,060,272
400-1-3Out0.7171280No7,740,441
380-0-4Out0.30504640No16,922,215
Total:12.4%69.5%0111183929100No1,806,014,952
Games Above .500
Chance Will Make Playoffs