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
-0.0
Waterford Mott 26 Lakeland 4 -0.1
If winner is:HomeHome OTAway OTAway
Walled Lake Central vs Plymouth-3.1-3.0+3.2+3.1
-1.2-1.2+1.1+1.2
Howell vs Plymouth-2.6-2.7+3.3+3.1
-1.0-0.9+1.1+1.1
Plymouth vs John Glenn+3.2+3.2-2.6-2.7
+1.2+1.2-1.0-1.0
Lakeland vs Hartland-0.4*-0.5+0.5+0.2
Milford vs Hartland-0.4-0.7*+0.2+0.2
Walled Lake Central vs Pinckney+0.2+0.4*-0.4-0.3
-0.0*+0.0*+0.1+0.0
Milford vs John Glenn-0.4-0.6*+0.3+0.2
+0.1+0.0-0.0-0.0
South Lyon vs Grand Blanc-0.5*+0.0*+0.3+0.2
+0.0+0.1+0.0-0.0
Howell vs Pinckney+0.2*+0.2*-0.3-0.4
Wayne Memorial vs Brighton+0.2*+0.2*-0.4-0.3
Waterford Kettering vs Walled Lake Northern-0.3*-0.2*+0.3+0.2
Novi vs Milford+0.2*+0.4*-0.2-0.2
South Lyon vs South Lyon East-0.2*-0.2*-0.0+0.1
+0.1+0.0-0.0-0.0
Waterford Mott vs Canton-0.2*-0.2*+0.2+0.2
Salem vs Novi-0.2*+0.0*+0.2+0.1
Canton vs Wayne Memorial-0.1*-0.2*+0.0+0.1
Waterford Kettering vs Northville-0.1*-0.2*+0.2+0.1
South Lyon East vs Walled Lake Western-0.0*-0.0+0.1+0.1
Grand Blanc vs Wayne Memorial+0.0+0.1-0.0-0.0
Walled Lake Northern vs Howell+0.0*+0.1*-0.1-0.0

* 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 Plymouth finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1514-0In1000948
1413-1In946005,248
1312-2In732422032,185
1211-3In3344121010125,315
1110-4In529302411100331,108
109-5In04231430227100635,018
98-6In031723322392000907,908
87-7In00015172928154100989,718
76-8100.0%00029213024113000820,292
65-992.50014142629186100517,208
54-1034.900029243324810242,136
43-111.700211303718383,328
32-12Out0526452319,491
21-13Out0534612,755
10-14Out01288736
Total:93.6%2464678888766543321104,713,394
Games Above .500
Chance Will Make Playoffs