How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 10/7100.0*Chance in playoffs100.0*Average seed
Brian vs Hoss+10.9-10.9
+0.9-0.9
Brad vs RJ+0.4-0.4
Harm vs Josh-0.2+0.2
If winner is:HomeAway
Week of 10/14100.0*Chance in playoffs100.0*Average seed
Brad vs Brian-10.7+10.7
-0.9+0.9
Vern vs Luke-0.3+0.3
Harm vs RJ-0.1+0.1
CL vs Dumas-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1110-0In97304,522
109-1In72252037,356
98-2In254524500168,732
87-399.5%1103035185100450,800
76-467.60172535238100789,149
65-54.00041834301220944,964
54-60.00041939318789,268
43-7Out001124345451,526
32-8Out011782170,131
21-9Out039738,045
10-10Out01004,635
Total:32.0%235679911121213123,849,128
Games Above .500
Chance Will Make Playoffs