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 -13.7
-2.9
-0.6
London Welsh 14 Bath 29 -4.8
-0.6
-0.1
Northampton 52 Wasps 30 +2.5
+0.6
Saracens 42 Harlequins 14 -2.3
+0.2
-0.1
Sale Sharks 23 Gloucester 6 -0.8
-0.8

What If

Chances based on how well the Exeter 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
604-0-0InYes118090No32,397,366
583-1-0100.0%Yes4583450No7,434,813
563-0-198.8Yes3647161No129,127,339
2-2-098.1Yes3048202No641,675
542-1-189.0Yes83546110No22,310,895
1-3-091.8Yes1038448No24,618
522-0-265.1100.0%218453230No193,697,700
1-2-159.8100.0115443730No1,283,986
0-4-053.6Yes845452No375
501-1-225.699.0022457171No22,306,005
0-3-127.598.9022655161No24,625
481-0-35.088.705404411No129,125,869
0-2-23.788.304404412No644,235
460-1-30.367.10175033No7,432,122
440-0-4Out23.3222734No32,398,185
Total:56.5%92.7%1141923231370No578,849,808
Games Above .500
Chance Will Make Playoffs