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 -0.2
If winner is:HomeDrawAway
Brumbies vs Blues+11.9+0.1-11.9
+11.6-0.1-11.5
+1.5-0.1-1.5
Force vs Lions-2.8-1.5+2.9
-3.0-1.5+3.0
-0.3-0.1+0.3
Kings vs Rebels+2.3+1.8-2.3
+2.4+1.8-2.4
+0.2+0.1-0.2
Reds vs Waratahs+0.2+3.2-0.3
+0.2+3.4-0.3
+0.0+0.3-0.0
Jaguares vs Sharks+0.0+0.2-0.1
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
Waratahs vs Blues-2.9+1.4+2.8
-3.1+1.5+3.0
-0.2+0.1+0.2
Sharks vs Force+2.8-1.4-2.7
+3.0-1.5-3.0
+0.3-0.1-0.3
Chiefs vs Reds+2.7+1.2-2.7
+2.7+1.3-2.8
+0.3+0.1-0.3
Rebels vs Lions-2.4+1.8+2.3
-2.4+1.8+2.4
-0.2+0.2+0.2
Cheetahs vs Highlanders+0.1+0.1-0.1
-0.1-0.0+0.1
Jaguares vs Sunwolves-0.1+0.1+0.1
Bulls vs Crusaders-0.1-0.1+0.1

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
407-000InYes02369834,342,228
386-001100.0%99.6%0136126000007,513,848
366-01099.898.9262350000000235,728,055
5-00299.898.826234000000716,796
345-01198.695.4032630012100045,071,459
4-00397.295.10316400220038,175
325-02090.387.602662002630000707,122,006
4-01289.586.402661003730003,589,762
3-00489.186.02660127301,217
304-02175.073.1056800281151000112,682,290
3-01371.471.0566007137200152,897
2-00570.470.4763191127
284-03049.849.73470041720810001,178,519,329
3-02245.745.63430041722910007,184,240
2-01448.248.134504162010103,673
263-03127.327.3027000519281740000150,200,572
2-02324.224.2024004182918510228,483
1-01517.917.9183153821539
243-0409.59.509001927321741001,178,518,597
2-0326.86.80701725332061007,180,878
1-0247.87.80817253420513,638
222-0412.02.0200041833281120112,670,648
1-0331.41.410041732301320151,966
0-025OutNo629531217
202-0500.20.20001722342681707,136,141
1-0420.10.1000151934291013,586,008
0-0340.20.20142133301011,167
181-0510.00.0000031536341145,050,763
0-043OutNo0021435361338,192
161-0600.00.0000017274422235,735,740
0-052OutNo005254524717,493
140-061OutNo000636587,509,571
120-070OutNo0003306834,331,617
Total:37.3%36.7%0092800002581010876424,815,727,532
Points
Chance Will Make Playoffs