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
Zebre vs Cheetahs-10.5-5.5+11.0
-9.8-6.4+10.4
-0.4-0.2+0.4
Ospreys vs Dragons-1.4+1.2+1.3
+0.1+1.3-0.2
-0.1+0.0+0.1
Connacht vs Munster+0.1+2.4-0.3
-0.1+1.1*-0.0
+0.0+0.1-0.0
Scarlets vs Blues+1.3+1.1-1.4
*+0.0+1.0-0.1
+0.1+0.0-0.1
Glasgow vs Kings-1.1+0.8+1.1
-0.0+0.7-0.0
-0.1+0.0+0.1
Treviso vs Edinburgh-0.0+1.4-0.1
Ulster vs Leinster-0.0+1.0-0.0

* 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 Cheetahs finish out the regular season.   Explain

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsERCC1234567Count
7215-0-0InYes100060,560
7014-1-0InYes10006,716
6814-0-1InYes100076,019*
6613-1-1InYes991096,989*
6413-0-2InYes9820561,960*
6212-1-2InYes9550639,270*
6012-0-3InYes94602,182,338
11-2-2InYes86140354,141*
5811-1-3100.0%Yes8317102,586,216*
5611-0-4100.0Yes8119106,540,216
10-2-3100.0Yes6532301,304,791*
5410-1-499.9Yes61354006,780,778
9-3-399.4100.0%40471210405,966*
5210-0-599.9Yes573850014,380,496
9-2-499.0100.03549151003,280,566*
509-1-598.7100.031491810013,547,407
8-3-492.899.8134435700913,824*
489-0-698.0100.027502120023,970,529
8-2-589.899.4104139101005,921,146*
468-1-687.199.3838411210020,327,811
7-3-563.386.721844307001,464,438*
448-0-783.498.7634431510030,813,158
7-2-656.880.511441349107,662,381
6-4-526.231.70323422650240,517*
427-1-749.871.91113837121023,230,609
6-3-620.522.602184130811,709,925*
407-0-842.962.1083440152030,830,168
6-2-715.815.3011438341017,654,028
5-4-63.40.90032142285239,419*
386-1-811.89.60111353814120,333,572
5-3-72.20.400217403381,464,998*
366-0-98.55.7018314018223,977,063
5-2-81.40.2001133738115,916,700*
345-1-90.90.10011035411413,556,258
4-3-80.10.0002184733913,951*
325-0-100.50.0000731441714,385,114
4-2-90.00.00011445393,277,095*
304-1-100.00.00011143456,771,562
3-3-90.0No0032967406,441*
284-0-110.00.0001841506,543,749
3-2-100.0No00225731,305,813*
263-1-110.0No00121772,586,287*
243-0-120.0No00118812,180,407
2-2-11OutNo00892353,805*
222-1-12OutNo0694640,618*
202-0-13OutNo0496561,728*
181-1-13OutNo19996,794*
161-0-14OutNo19976,548*
140-1-14OutNo01006,827
120-0-15OutNo010060,404
Total:51.8%58.3%1319201714107313,198,116

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs