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 -5.3
-5.4
-0.6
If winner is:HomeDrawAway
Cheetahs vs Crusaders-1.5+1.4+1.5
-1.7+1.5+1.7
-0.1+0.1+0.1
Brumbies vs Blues+0.1-0.1-0.1
Jaguares vs Sharks+0.1-0.0-0.1
Force vs Lions+0.0+0.1-0.0
Chiefs vs Sunwolves+0.1-0.0-0.1
If winner is:HomeDrawAway
Week of 5/5100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Hurricanes vs Stormers-7.1+3.9+7.0
-7.2+5.1+7.0
-0.7+0.4+0.7
Bulls vs Crusaders-4.0+3.2+3.9
-5.2+4.3+5.1
-0.3+0.3+0.3
Cheetahs vs Highlanders-1.2+1.1+1.2
-1.7+1.5+1.7
-0.1+0.1+0.1
Sharks vs Force-0.3-0.3+0.4
Jaguares vs Sunwolves-0.2+0.2+0.2
+0.1-0.0-0.1
Waratahs vs Blues+0.1-0.1-0.1
Rebels vs Lions+0.1+0.0-0.1

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inHomeChance will finish regular season at seed
TPW-OTLDplayoffsQuarterfinal123456789101112131415161718Count
486-000InYes16671769,091,560
465-001InYes10662413,083,984
445-010InYes14950410,502,298
4-002InYes148511,042,252
424-011InYes0366365,399,779
3-003InYes0198144,171
404-020100.0%99.5%0168310000001,026,288,164
3-012100.099.80158410000004,168,820
2-004InYes118811,043
383-02199.999.2079110000000130,805,514
2-01399.899.02952000000132,336
1-00592.392.392813
363-03098.293.71839002320001,368,380,887
2-02298.295.118410001210006,248,531
1-01498.896.818610011102,050
342-03193.491.007713000242000130,790,409
1-02391.689.6076130024310133,317
0-01566.766.758825812
322-04073.370.004030003121230001,026,261,545
1-03274.873.20413200281161004,167,083
0-02476.475.242341711501,061
301-04161.761.50283300041515400065,405,929
0-03358.358.2263203141960044,520
281-05029.529.542500112292161000410,526,241
0-04232.732.74280052226112001,041,058
260-05119.519.52180021431249100013,082,116
240-0604.04.0040021128331840069,082,839
Total:85.4%83.3%0106112001234321100004,815,727,532
Points
Chance Will Make Playoffs