How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

If winner is:HomeDrawAway
Week of 10/27100.0*Chance in playoffs100.0*ERCC100.0*Average seed
Connacht vs Munster-8.6-4.7+9.0
-7.7-5.0+8.2
-0.4-0.2+0.4
Zebre vs Cheetahs-0.1+2.4-0.1
-0.1+1.1-0.0
+0.0+0.1-0.0
Ospreys vs Dragons-1.2+1.0+1.1
+0.1+1.1-0.2
Scarlets vs Blues+1.1+1.0-1.2
*+0.0+0.8-0.1
Glasgow vs Kings-0.9+0.7+0.9
-0.0+0.6-0.0
-0.1+0.1+0.1
Treviso vs Edinburgh-0.0+1.1-0.1
Ulster vs Leinster-0.0+0.8-0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

What If

Chances based on how well the Munster finish out the regular season.   Explain

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsERCC1234567Count
7615-0-0InYes10060,386
7414-1-0InYes10006,777
7214-0-1InYes100076,503*
7013-1-1InYes100097,044*
6813-0-2InYes1000561,901*
6612-1-2InYes9910639,423*
6412-0-3InYes98202,179,697
11-2-2InYes9640354,662*
6211-1-3InYes95502,586,915*
6011-0-4InYes94606,543,586
10-2-3InYes871301,305,969*
5810-1-4100.0%Yes8515006,774,841
9-3-3100.0Yes722710405,931*
5610-0-5100.0Yes83170014,386,813
9-2-4100.0Yes6830203,277,258*
549-1-5100.0Yes653330013,553,537
8-3-499.6100.0%4447900913,440*
529-0-699.9100.0613630023,967,382*
8-2-599.3100.03949121005,912,389*
508-1-699.0100.035501410020,323,105
7-3-594.199.81648306001,465,601*
488-0-798.6100.031511710030,822,934*
7-2-691.999.713453480007,658,892
6-4-573.392.13264423400238,418
467-1-789.099.31042371010023,227,865
6-3-666.285.822143276001,710,812*
447-0-885.798.6838401310030,829,241
6-2-759.678.921741318107,662,542
5-4-628.229.50424412550239,549*
426-1-852.469.71133835111020,325,701
5-3-721.920.303193930811,463,662*
406-0-945.459.61103538152023,975,370
5-2-816.413.0021537341115,918,720*
385-1-912.48.20111343714113,550,453
4-3-82.30.30021639348914,916*
365-0-109.04.8018314018214,389,602
4-2-91.40.1001123638123,278,927*
344-1-100.80.100193442146,780,078
3-3-90.10.002164636405,941*
324-0-110.50.00073045186,544,355
3-2-100.00.00011344421,305,460*
303-1-110.00.00011042482,584,517*
283-0-120.00.000840522,182,136
2-2-110.0No0022474354,146*
262-1-12OutNo012079637,839*
242-0-13OutNo011683562,741*
221-1-13OutNo0069497,230*
201-0-14OutNo049675,814*
180-1-14OutNo1996,645
160-0-15OutNo010060,450
Total:70.7%75.5%27261913952313,198,116

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs