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 -7.2
-7.1
-1.6
Hurricanes 56 Brumbies 21 +1.0
+1.0
+0.1
Force 7 Chiefs 16 +0.7
+0.7
+0.1
Sharks 6 Rebels 6 -0.5
-0.5
-0.2
Highlanders 40 Sunwolves 15 +0.0
If winner is:HomeDrawAway
Week of 4/28100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Reds vs Waratahs-6.0-0.3+10.3
-6.0-0.3+10.3
-1.1-0.0+1.8
Brumbies vs Blues-2.5+0.9+4.2
-2.5+0.9+4.2
-0.2+0.0+0.3
Force vs Lions-1.7-1.2+0.4
-1.7-1.2+0.4
-0.3-0.2+0.1
Kings vs Rebels+0.5+0.4-0.9
+0.5+0.4-0.9
+0.0+0.0-0.1
Cheetahs vs Crusaders-0.2-0.2+0.0
Chiefs vs Sunwolves+0.0-0.0-0.1

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inHomeChance will finish regular season at seed
TPW-OTLDplayoffsQuarterfinal123456789101112131415161718Count
367-00099.8%99.5%02079000002,542,176
346-00199.198.4593001100724,167
326-01095.094.5490000220034,760,761
5-00291.790.848701440130,435
305-01189.889.31890004610012,002,470
4-00389.288.91880371011,896
285-02076.776.7076002165000272,478,922
4-01266.166.0066032291001,587,837
3-00466.966.9067319111619
264-02159.959.90600011319610069,583,065
3-01357.457.4057011420710104,775
2-00558.158.158319101031
244-03038.138.10380013311630001,001,850,688
3-02224.324.30240012372240006,695,028
2-01425.025.0250103723403,803
223-03116.016.016011636246100187,434,710
2-02313.713.71401153626710306,597
1-01510.310.31011842234178
203-0405.05.0500831361630001,939,244,723
2-0321.41.4106273922500012,557,878
1-0241.71.7206273722506,643
182-0410.30.30004203829810253,417,667
1-0330.20.20031837311010359,522
0-025OutNo213353315260
162-0500.00.000018283921402,017,986,046
1-0420.00.000052441255010,614,366
0-034OutNo06244025503,727
141-051OutNo0032044303165,110,899
0-043OutNo021743353142,353
121-060OutNo009384761,054,498,732
0-052OutNo007375063,259,781
100-061OutNo06573640,638,180
80-070OutNo35641214,723,069
Total:11.1%11.1%001100003712131415131027,302,781,704
Points
Chance Will Make Playoffs