How are these numbers calculated?

Big Games

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

Week of 4/21100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Waratahs 24 Kings 26 +4.6
+4.6
+0.3
Hurricanes 56 Brumbies 21 -3.6
-3.6
-0.3
Force 7 Chiefs 16 +2.9
+2.9
+0.2
Sharks 6 Rebels 6 -1.4
-1.4
-0.2
If winner is:HomeDrawAway
Week of 4/28100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Brumbies vs Blues+9.8-4.8-16.6
+9.8-4.8-16.6
+1.1-0.5-1.8
Force vs Lions-6.7-4.6+1.6
-6.7-4.6+1.7
-0.6-0.4+0.1
Kings vs Rebels+1.5+1.1-2.8
+1.5+1.1-2.8
+0.1+0.1-0.2
Reds vs Waratahs+0.0+3.2-0.2
+0.0+3.2-0.2
+0.0+0.2-0.0
Cheetahs vs Crusaders-0.1-0.1+0.0

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inHomeChance will finish regular season at seed
TPW-OTLDplayoffsQuarterfinal123456789101112131415161718Count
407-000InYes052486,890,942
386-001100.0%100.0%0237700002,128,191
366-010100.099.90208000000092,187,770
5-002100.099.90208000000306,847
345-01199.899.7069400000025,734,277
4-00399.899.7594000022,949
325-02099.399.204950000000530,996,912
4-01299.098.9494000002,813,749
3-00499.299.25950001,001
304-02197.096.919600012000112,408,447
3-01396.596.4196012100155,904
2-005InYes39730
284-03091.791.7091001520001,466,825,179
3-02288.888.808800173009,040,477
2-01489.189.118916404,663
263-03178.678.60790007113000228,409,857
2-02375.475.407500813400347,318
1-01561.461.4611420470
243-04058.858.8059008211010002,117,461,694
2-03249.149.1049072615300012,789,723
1-02453.353.353052316306,495
222-04130.230.230011532184000230,190,222
1-03324.724.72501163420400306,317
0-02520.920.921232130543
202-05011.411.41100832331320001,619,093,246
1-0425.75.760628371940008,055,788
0-0346.56.5742739194002,687
181-0511.11.11005233825610110,264,546
0-0430.40.400421382881091,925
161-0600.10.10001929381930613,746,741
0-0520.00.00006244025501,826,379
140-061OutNo003214330319,796,327
120-070OutNo01103846690,874,988
Total:52.1%52.1%0151000049119642107,302,781,704
Points
Chance Will Make Playoffs