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
If winner is:HomeHome OTAway OTAway
Lakeland vs Hartland-0.7-0.6+0.4+0.3
-1.1-1.0+0.5+0.5
Milford vs Hartland-0.7-0.5+0.3+0.3
-1.1-1.1+0.5+0.6
Hartland vs John Glenn+0.4+0.4-0.3-0.4
+0.9+0.9-0.9-0.9
South Lyon vs Grand Blanc-0.1*-0.1*-0.0+0.0
+0.1+0.0*-0.0-0.0
Howell vs Pinckney-0.1-0.1+0.2+0.2
Walled Lake Central vs Pinckney+0.0*+0.1*-0.0-0.0
-0.0-0.0*+0.0+0.1
South Lyon vs South Lyon East+0.1+0.1*-0.0-0.0
Howell vs Plymouth+0.0*+0.1*-0.0-0.0
-0.1-0.1+0.0+0.1
South Lyon East vs Walled Lake Western-0.0*-0.0+0.1+0.1
Walled Lake Northern vs Howell+0.1+0.1-0.0-0.1

* 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 Hartland finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1614-0In10006,773
1513-1In9730053,492
1412-2In8315010214,235
1311-3In52365700521,034
1210-4In16402120400867,549
119-5In11433222271001,033,909
108-6In0117520302071000919,897
97-7In02016193127123000616,821
86-8In0002923312310200314,375
75-998.3%003112431228200121,736
64-1049.000141529301650034,610
53-113.1031331361717,246
42-120.10052552181,062
31-13Out14544197
20-14Out02278558
Total:99.4%14151510987543321110000004,713,394
Games Above .500
Chance Will Make Playoffs