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
+0.0
If winner is:HomeHome OTAway OTAway
South Lyon vs South Lyon East+10.6+10.1-10.3-10.6
+1.3+1.2-1.3-1.3
South Lyon vs Grand Blanc+10.3+9.4-10.6-10.3
+1.3+1.2-1.3-1.3
Wayne Memorial vs Brighton+0.5*-0.2*-0.1-0.5
+0.0*-0.1+0.0-0.0
Waterford Kettering vs Walled Lake Northern-0.4*-0.6*+0.8+0.4
-0.0*-0.1*+0.0+0.0
Lakeland vs Hartland-0.4*-0.6*-0.0+0.4
Howell vs Pinckney+0.3*+0.3*-0.3-0.3
Canton vs Wayne Memorial-0.3*-0.2*+0.8+0.3
-0.0*-0.1*+0.1+0.0
Milford vs John Glenn-0.2*+0.2*+0.2+0.2
South Lyon East vs Walled Lake Western+0.2*-0.2*+0.4-0.2
Milford vs Hartland-0.2*-0.5*+0.5+0.2
Howell vs Plymouth-0.0-0.1*+0.2+0.0
Hartland vs John Glenn-0.0-0.1-0.1+0.0
Salem vs Novi-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 South Lyon finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1313-0In919340
1212-1In64314102,343
1111-2In234521910013,550
1010-3In116431516720050,044
99-4In0018171925198200125,204
88-5In10014142628187200226,375
77-692.4%00015152627176100300,881
66-717.200141326301961300,216
55-80.200210293920225,985
44-9Out0063163125,386
33-10Out0099050,450
22-11Out029813,776
11-12Out01002,230
00-13Out100360
Total:52.0%013112223454467678910131,437,140
Games Above .500
Chance Will Make Playoffs