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 +0.4
If winner is:HomeHome OTAway OTAway
Wayne Memorial vs Brighton-4.8-4.8+9.3+9.5
-0.7-0.7+1.4+1.5
South Lyon vs South Lyon East-0.7-1.4+0.8+0.4
Howell vs Pinckney+0.4+0.9-1.2-1.0
Lakeland vs Hartland-1.1-1.0+0.7+0.5
Milford vs Hartland-0.9-1.0*-0.1+0.5
South Lyon vs Grand Blanc-0.9*-0.9*+0.3+0.3
Milford vs John Glenn-0.7*-0.9*+0.5+0.4
Canton vs Wayne Memorial-0.6*-0.1*+0.5+0.4
-0.1-0.0*+0.0+0.0
Walled Lake Central vs Pinckney+0.3*+0.5*-0.8-0.6
Waterford Kettering vs Walled Lake Northern-0.5*-0.8*+0.1+0.3
-0.1-0.1*+0.0+0.0
Salem vs Novi-0.3*+0.0*-0.2+0.2
-0.0+0.1*-0.1+0.0
Plymouth vs John Glenn-0.2*-0.4*-0.3+0.2
-0.0*-0.1*+0.0+0.0
Howell vs Plymouth+0.2*+0.4*+0.1-0.2
Waterford Mott vs Canton-0.2*+0.1*-0.3+0.2
Walled Lake Central vs Plymouth+0.2*-0.4*-0.6-0.2
Waterford Kettering vs Northville+0.1*-0.1*-0.2-0.1
South Lyon East vs Walled Lake Western+0.1*-0.0*+0.5-0.2
-0.0-0.0+0.1+0.1
Salem vs Lakeland+0.1*+0.4*+0.4-0.1
-0.0*+0.0*+0.1+0.0
Novi vs Milford-0.0*-0.0*+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 Brighton finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1413-0In89110785
1312-1In50435203,523
1211-2In1546251120024,714
1110-3In1143917208100106,704
109-4In0117316282310200306,941
98-5In02004152929165100627,339
87-6100.0%00018213125112000940,575
76-798.800031227311961001,043,222
65-860.4001720322611200853,633
54-96.00015193430101512,680
43-100.10018314516218,413
32-11Out005415462,676
21-12Out0168410,752
10-13Out2981,437
Total:76.1%0121234566788988765424,713,394
Games Above .500
Chance Will Make Playoffs