How are these numbers calculated?

Big Games

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

Week of 12/13100.0*Chance in playoffs100.0*Average seed
Grand Blanc 26 Walled Lake Western 4 -0.0
Waterford Mott 26 Lakeland 4 +0.0
If winner is:HomeHome OTAway OTAway
Howell vs Pinckney+0.4+0.4-0.8-1.0
+0.5+0.5-1.2-1.2
Howell vs Plymouth+0.5+0.5-0.4-0.5
+0.8+0.8-0.9-0.9
Walled Lake Northern vs Howell-0.4-0.5+0.5+0.5
-0.8-0.8+0.9+1.0
South Lyon vs Grand Blanc-0.1*-0.0*+0.0+0.0
+0.1+0.1-0.0-0.0
Lakeland vs Hartland-0.1*-0.0*-0.1+0.0
+0.1+0.1-0.1-0.1
Milford vs Hartland-0.1*-0.0*+0.0+0.0
+0.2+0.1-0.1-0.1
South Lyon vs South Lyon East-0.0*-0.1*+0.0+0.0
+0.1+0.1-0.1-0.0
Canton vs Wayne Memorial-0.0*-0.0*-0.1+0.0
Walled Lake Central vs Pinckney-0.0-0.0+0.0+0.1
South Lyon East vs Walled Lake Western-0.0-0.1+0.1+0.1
Hartland vs John Glenn-0.1-0.1+0.1+0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

What If

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

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1614-0In10005,071
1513-1In9720041,417
1412-2In8513010176,754
1311-3In54355600457,471
1210-4In174020193000803,503
119-5In11533232161001,020,539
108-6In011752030206100958,872
97-7In02016193126123000679,338
86-8In000292331239200365,755
75-998.4%003112531218200148,253
64-1050.70141630301540044,707
53-113.00031432351619,649
42-120.10052653161,359
31-13Out54550142
20-14Out1090564
Total:99.2%13141510987654321111000004,713,394
Games Above .500
Chance Will Make Playoffs