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 4/28100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Reds vs Waratahs-5.9-0.3+10.2
-5.9-0.3+10.2
-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-1.6-1.2+0.4
-1.6-1.2+0.4
-0.3-0.2+0.1
Kings vs Rebels+0.5+0.3-0.9
+0.5+0.3-0.9
+0.0+0.0-0.1
Chiefs vs Sunwolves+0.0-0.0-0.1
Cheetahs vs Crusaders-0.2-0.2+0.0
If winner is:HomeDrawAway
Week of 5/5100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Waratahs vs Blues+5.6-2.1-5.8
+5.6-2.1-5.8
+1.2-0.5-1.2
Chiefs vs Reds+0.2-1.0-2.6
+0.2-1.0-2.6
+0.0-0.2-0.3
Sharks vs Force+0.4-1.3-1.7
+0.4-1.3-1.7
+0.1-0.2-0.3
Rebels vs Lions-1.4+0.1+0.3
-1.4+0.1+0.3
-0.3+0.0+0.1
Cheetahs vs Highlanders-0.2-0.1+0.1
Bulls vs Crusaders-0.2-0.1+0.0
Jaguares 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
367-00099.7%99.5%04455000004,745,483
346-00198.898.4016830001001,308,457
326-01094.794.51381000230063,426,453
5-00291.290.91378004500244,471
305-01189.589.4287003610022,783,678
4-00388.888.72860371023,247
285-02076.976.9275002165000524,746,065
4-01266.366.3165022191003,093,832
3-00468.468.41672181111,220
264-02160.460.406000113196100137,426,550
3-01357.957.905811421710208,707
2-00548.948.9492718745
244-03038.738.703900133016200002,000,854,039
3-02224.724.70250123722400013,469,228
2-01425.725.70260103722507,593
1-006OutNo50502
223-03116.516.517011636246100380,335,897
2-02314.014.014011637257100626,549
1-01514.014.01411234346143
203-0405.35.3500831351630003,966,932,499
2-0321.51.52006273922500025,778,315
1-0241.51.520626392150013,955
0-016OutNo1001
182-0410.40.40004203829810523,749,940
1-0330.20.200031837311010744,294
0-025OutNo31939319127
162-0500.00.000018283921404,195,323,105
1-0420.00.000052441255022,106,124
0-034OutNo005244125507,592
141-051OutNo0032044303345,506,618
0-043OutNo021643354300,080
121-060OutNo009374762,216,697,791
0-052OutNo007365076,854,198
100-061OutNo06563785,787,589
80-070OutNo25542454,657,769
Total:10.8%10.8%0011000027121314151311214,997,761,656
Points
Chance Will Make Playoffs