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 +4.7
+1.4
If winner is:HomeHome OTAway OTAway
South Lyon vs Grand Blanc-3.1-3.5+2.7+3.1
-1.2-1.2+1.1+1.2
Grand Blanc vs Wayne Memorial+2.7+2.8-2.5-2.7
+1.2+1.2-1.2-1.2
Wayne Memorial vs Brighton+0.1*+0.4*+0.1-0.1
-0.0+0.1*+0.0+0.0
Howell vs Pinckney+0.1*+0.1*-0.3-0.1
-0.0*-0.1*+0.0+0.0
Milford vs John Glenn-0.1*+0.1*+0.4+0.1
+0.0*+0.1-0.0-0.0
Milford vs Hartland-0.1*-0.4*+0.3+0.1
Walled Lake Central vs Pinckney+0.1*-0.2*+0.3-0.1
-0.1-0.1+0.2+0.1
Canton vs Wayne Memorial-0.1*-0.1*+0.1+0.1
Lakeland vs Hartland-0.1*-0.3*-0.2+0.1
+0.0-0.1-0.0-0.0
Novi vs Milford-0.0-0.0*-0.1+0.0
Walled Lake Northern vs Howell-0.0-0.1+0.1+0.0
Waterford Kettering vs Walled Lake Northern+0.0+0.0-0.1-0.0
South Lyon East vs Walled Lake Western-0.0*+0.0+0.1+0.0
Salem vs Novi+0.0*+0.1*-0.0-0.0

* 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 Grand Blanc finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1613-0In100348
1512-1In10002,220
1411-2In9820013,791
1310-3In8990150,083
129-4In6228380125,323
118-5In20371523400226,033
107-6In111232227133000300,559
96-7In0417192824124100301,032
85-8100.0%0001411222721113100225,758
74-988.10015132327209200125,228
63-1015.10013112330229150,441
52-110.2002926392413,695
41-12Out0527682,295
30-13Out595334
Total:94.8%131189877644443332211101,437,140
Games Above .500
Chance Will Make Playoffs