How are these numbers calculated?

Big Games

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

Week of 10/18100.0*Chance in playoffs100.0*Average seed
Calgary 5 Brampton 2 -4.6
-0.2
Boston 2 Montreal 0 -0.2
Calgary 4 Toronto 5 +0.1
If winner is:HomeAway
Montreal vs Calgary-1.8+1.9
If winner is:HomeAway
Week of 10/25100.0*Chance in playoffs100.0*Average seed
Toronto vs Brampton-4.6+8.8
-0.2+0.3
Montreal vs Calgary-1.8+1.9
Montreal vs Calgary-1.8+1.9

What If

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

100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTplayoffs12345Count
42-46In10010,691,659*
40203-0In1000673,379
38194-0In10004,230,972
36185-0In1000020,188,794
34176-0In982075,804,736
32167-0In9190229,547,389
30158-0In742610569,495,342
28149-0In4152701,170,588,540
261310-0In9563322,008,027,324
241211-099.9%018612102,887,656,438
221112-090.413059103,488,308,537
201013-059.20554413,539,262,577
18914-027.80127723,008,439,072
16815-09.9010902,132,298,541
14716-02.703971,250,243,514
12617-00.50199599,513,049
10518-00.10100231,187,074
8419-00.0010069,947,626
6320-00.0010015,993,800
0-4Out10013,489,087*
Total:62.4%71118273821,325,587,450

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs