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
Waterford Mott 26 Lakeland 4 -11.8
-1.3
Grand Blanc 26 Walled Lake Western 4 +0.4
If winner is:HomeHome OTAway OTAway
Salem vs Lakeland-10.2-9.9+12.4+12.5
-0.8-0.8+1.0+1.0
Lakeland vs Hartland+13.8+13.4-6.6-6.6
+1.2+1.1-0.6-0.6
Milford vs Hartland-1.5-1.4+0.9+0.8
-0.1*-0.1+0.1+0.0
Milford vs John Glenn-1.3-1.2+0.9+0.6
-0.1-0.1*+0.1+0.0
South Lyon vs Grand Blanc-1.5*-1.0*+0.1+0.5
-0.1-0.1*+0.0+0.0
Howell vs Pinckney+0.6*+0.5*-0.6-1.4
+0.0+0.0-0.1-0.1
Walled Lake Central vs Pinckney+0.5*-0.2*-0.6-1.1
+0.0*-0.0-0.0-0.1
Wayne Memorial vs Brighton+0.5*+0.5*-1.0-1.0
+0.0*+0.0-0.1-0.1
South Lyon vs South Lyon East-0.8*-0.9*+0.7+0.5
-0.1-0.1+0.0+0.0
Waterford Kettering vs Walled Lake Northern-0.6*-0.2*+0.7+0.4
Salem vs Novi-0.5*-0.5*+0.9+0.4
-0.0*-0.0+0.1+0.0
Novi vs Milford+0.4*+0.2*-0.4-0.5
+0.0+0.0-0.1-0.0
Canton vs Wayne Memorial-0.5*-0.6*+0.2+0.3
Howell vs Plymouth+0.3*+0.3*+0.0-0.3
Waterford Mott vs Canton-0.3*-0.5*+0.2+0.2
Plymouth vs John Glenn-0.2*-0.4*+0.3+0.2
Waterford Kettering vs Northville+0.2*-0.0*+0.0-0.2
South Lyon East vs Walled Lake Western+0.1*-0.2*-0.2-0.2
+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 Lakeland finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1313-0In881101570
1212-1In49336110360
1111-2In10291736813,646
1010-3In041221352161022,169
99-4In01172131251130090,560
88-5In00031124302182000266,813
77-699.9%0014142629197100574,835
66-785.10001720312612300915,064
55-822.9001517333012201,072,203
44-90.700162540245919,857
33-100.0003204532558,789
22-11Out022573226,739
11-12Out059555,005
00-13Out01006,784
Total:42.2%00000111223456891113131294,713,394
Games Above .500
Chance Will Make Playoffs