How are these numbers calculated?

Big Games

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

Week of 5/29100.0*Chance in playoffs100.0*Average seed
Stormers 42 Cheetahs 12 (ot)+10.8
+0.6
Lions 27 Waratahs 22 -3.6
-0.1
Brumbies 22 Bulls 16 (so)+2.2
+0.2
Crusaders 35 Hurricanes 18 (ot)-0.7
-0.1
Highlanders 36 Chiefs 9 (ot)-0.1
Sharks 25 Rebels 21 (so)+0.1
Week of 6/5100.0*Chance in playoffs100.0*Average seed
Stormers 19 Lions 19 In
+0.3
Rebels 21 Bulls 20 (so)+1.2
+0.1
Cheetahs 33 Waratahs 58 (ot)-0.2
-0.0
Blues 11 Crusaders 34 (ot)-0.1
Force 20 Brumbies 33 -0.1
+0.0
If winner is:HomeHome OTHome SODrawAway SOAway OTAway
Week of 6/12100.0*Chance in playoffs100.0*Average seed
Waratahs vs Reds-0.0-0.0-0.0+0.2+0.2+0.2+0.2
Brumbies vs Crusaders-0.0-0.0-0.0+0.0+0.1+0.1+0.1

What If

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

100100100100100100100100100100100100100100100
If finish:Chance inTop ofChance will finish regular season at seed
TPW-OTL-SODplayoffsLeague123456789101112131415Count
480-10-00InNo69410,563,044,596
471-00-00InNo69413,160,482,087
43-45InNo10011,152,373,267*
Total:InNo49634,875,899,950

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs