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 -0.1
If winner is:HomeHome OTAway OTAway
Waterford Kettering vs Walled Lake Northern-0.2-0.1+0.1+0.1
-0.9-0.9+0.5+0.5
Walled Lake Northern vs Howell+0.1+0.1-0.1-0.1
+0.7+0.7-0.8-0.8
South Lyon vs Grand Blanc-0.0*+0.0-0.1*+0.0
+0.1+0.2-0.0-0.0
Lakeland vs Hartland+0.0+0.1-0.0-0.0
Milford vs Hartland+0.1+0.0-0.0-0.0
Wayne Memorial vs Brighton+0.0*-0.0*-0.1-0.0
Milford vs John Glenn+0.1+0.1-0.0-0.0
Walled Lake Central vs Pinckney-0.0-0.1+0.1+0.1
Grand Blanc vs Wayne Memorial-0.0-0.1+0.1+0.1
Howell vs Pinckney-0.0-0.0+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 Walled Lake Northern finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1613-0In100012,930
1512-1In9820096,823
1411-2In8710020338,844
1310-3In562731300723,173
129-4In183113344001,033,584
118-5In11016362771001,052,285
107-6In005826332061000782,561
96-7In00017213225112000431,350
85-8In0003122631197100175,711
74-999.2%001516292815510052,639
63-1065.702924302392011,145
52-118.2017213527811,665
41-12Out27284319123
30-13Out152767561
Total:99.9%21148191186432111000000004,713,394
Games Above .500
Chance Will Make Playoffs