How are these numbers calculated?

Big Games

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

Week of 4/19100.0*Chance in playoffs100.0*Average seed
Demons 144 Giants 103 -1.9
-0.7
Kangaroos 125 Lions 62 +0.1
Tigers 79 Magpies 113 -0.1
Eagles 68 Blues 89 +0.1
Saints 91 Bombers 128 +0.1
If winner is:HomeDrawAway
Week of 4/26100.0*Chance in playoffs100.0*Average seed
Giants vs Suns+0.9-0.1-0.7
+0.6+0.0-0.5
Bulldogs vs Cats-0.1-0.0+0.0
Power vs Eagles+0.0-0.0-0.1

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112131415161718Count
7218-0-0In92801,374
6616-1-1In50502
6416-0-2In195222727*
6215-1-2In14503614
6015-0-3In22244275255*
5814-1-3In0103139173274*
5614-0-4In021838311011,686*
5413-1-4In15243924711,700*
5213-0-599.6%0111313517408,950*
5012-1-597.00213343315308,192*
4812-0-687.30051934281120037,008*
4611-1-662.201621352791031,296*
4411-0-734.200182434237100106,543
10-2-633.501824342481012,738*
4210-1-710.00019263522710090,515*
4010-0-82.0002102633217100268,484
9-2-71.80210263321710033,138*
389-1-80.100292634227100200,437
8-3-70.10292534227107,227*
369-0-90.0002102532218100545,201
8-2-80.000210253222810067,540*
348-1-9Out00210263321710363,463
7-3-8Out02925332271013,200*
328-0-10Out00021127332061888,420
7-2-9Out0021126332161108,441*
307-1-10Out0002133134173523,109
6-3-9Out00212303418318,355*
287-0-11Out0004173532101,163,101
6-2-10Out00416353311136,677*
266-1-11Out0016264424595,401
5-3-10Out01624442519,895*
246-0-12Out0021442421,208,860
5-2-11Out02134244132,347*
225-1-12Out0053361528,469
4-3-11Out05336216,112*
205-0-13Out0022276987,283
4-2-12Out02217797,126*
184-1-13Out001288358,053
3-3-12Out012889,616*
164-0-14Out00694618,635
3-2-13Out069451,827*
143-1-14Out0397182,501*
123-0-15Out0199287,637
2-2-14Out19919,578*
102-1-15Out010063,064*
82-0-16Out010093,782
1-2-15Out01004,493*
61-1-16Out010013,499*
41-0-17Out010019,398*
0-2Out1004,521*
Total:1.3%0000000112345791319379,949,464

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs