How are these numbers calculated?

Big Games

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

Week of 4/28100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Highlanders 57 Stormers 14 -0.1
If winner is:HomeDrawAway
Kings vs Rebels-6.3-4.7+6.4
-6.2-4.8+6.3
-1.3-0.7+1.3
Brumbies vs Blues-2.3-1.6+2.4
-2.4-1.6+2.4
-0.2-0.1+0.2
Force vs Lions-1.6+0.0+1.6
-1.6+0.1+1.6
-0.2+0.0+0.2
Reds vs Waratahs-0.1-1.2+0.2
-0.1-1.2+0.2
-0.0-0.2+0.0
Chiefs vs Sunwolves+0.1+0.1-0.1
Cheetahs vs Crusaders-0.1-0.0+0.1
If winner is:HomeDrawAway
Week of 5/5100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Rebels vs Lions+6.4-4.7-6.3
+6.3-4.8-6.2
+1.2-0.6-1.2
Sharks vs Force+1.6+0.1-1.6
+1.6+0.1-1.6
+0.2+0.0-0.2
Chiefs vs Reds+1.2-0.8-1.2
+1.2-0.8-1.2
+0.2-0.1-0.2
Waratahs vs Blues-1.1-0.7+1.1
-1.1-0.7+1.1
-0.1-0.1+0.1
Cheetahs vs Highlanders-0.1-0.0+0.1
Bulls vs Crusaders-0.1+0.0+0.1

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inHomeChance will finish regular season at seed
TPW-OTLDplayoffsQuarterfinal123456789101112131415161718Count
388-000InYes08632817,238,944
367-00199.5%97.8%1346300111004,226,586
347-01097.295.203164000221000132,576,340
6-00295.193.4028660013100470,563
326-01178.375.40670003109300029,570,403
5-00382.680.9675026830030,100
306-02067.266.8056200071492000464,028,320
5-01262.161.9458005151440002,826,816
4-00456.456.435341717501,219
285-02126.526.502600211252410200088,697,129
4-01331.531.5031016202613300150,303
3-00521.121.121322616519
265-03018.718.701900317302271000928,031,790
4-02215.115.10150021330271120007,066,795
3-01411.411.411112292914304,740
244-0311.71.720019253422610147,852,712
3-0232.42.42016233425810300,151
2-0156.56.5717243520892
224-0400.80.81000313303317401,160,082,863
3-0320.50.5000210273421509,417,282
2-0240.20.20018233624706,981
203-0410.00.0000152140285147,868,537
2-0330.00.000042040295299,813
1-025OutNo3154633287
183-0500.00.00000110324016928,083,865
2-0420.00.00000183043187,068,578
1-034OutNo0172645224,684
0-026OutNo1001
162-051OutNo00111503988,713,841
1-043OutNo001114939149,587
0-035OutNo14602635
142-060OutNo00043363464,054,379
1-052OutNo00331662,825,012
0-044OutNo330681,147
121-061OutNo00237729,564,324
0-053OutNo0237730,004
101-070OutNo00892132,555,654
0-062OutNo0793469,799
80-071OutNo6944,226,767
60-080OutNo19917,231,270
Total:14.5%14.4%0021300001257910111214144,815,727,532
Points
Chance Will Make Playoffs