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 +0.2
-0.0
If winner is:HomeHome OTAway OTAway
Hartland vs John Glenn-4.3-5.2+4.3+4.3
-1.4-1.5+1.3+1.4
Milford vs John Glenn-4.7-4.7+4.8+4.7
-1.4-1.3+1.3+1.4
Plymouth vs John Glenn-4.2-3.9+4.1+4.2
-1.3-1.3+1.3+1.3
Wayne Memorial vs Brighton+0.3*-0.0*-0.9-0.3
South Lyon vs Grand Blanc-0.2*+0.1*+0.1+0.2
+0.0*+0.1-0.0-0.0
Howell vs Pinckney+0.2*+0.3*-0.4-0.2
-0.0*+0.1*-0.1+0.0
Canton vs Wayne Memorial-0.2*-0.4*+0.3+0.2
Lakeland vs Hartland-0.2*-0.2*+0.2+0.2
Milford vs Hartland-0.2*-0.4*+0.6+0.2
Waterford Kettering vs Walled Lake Northern-0.2*+0.6*-0.0+0.1
-0.0*+0.2+0.1+0.0
Waterford Mott vs Canton-0.1*-0.3*+0.9+0.1
+0.0+0.0*+0.1-0.0
Walled Lake Central vs Pinckney+0.1*+0.2*+0.3-0.1
-0.0-0.1*+0.1+0.0
Salem vs Lakeland+0.1*+0.0*+0.2-0.1
-0.0*-0.0*+0.1+0.0
South Lyon East vs Walled Lake Western+0.1*+0.3*+0.0-0.1
South Lyon vs South Lyon East+0.0+0.1*-0.0-0.0
Grand Blanc vs Wayne Memorial+0.0-0.0-0.1-0.0
Novi vs Milford-0.0-0.1+0.1+0.0
Howell vs Plymouth+0.0*+0.1-0.1-0.0
Walled Lake Central vs Plymouth+0.0*-0.1-0.1-0.0
Waterford Kettering vs Northville+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 John Glenn finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1614-0In100261
1513-1In10001,236
1412-2In98207,927
1311-3In9080231,881
1210-4In6425290088,024
119-5In22331128500175,582
108-6In19142831143000262,904
97-7In00118212924124100301,118
86-8100.0%0001412232721103000263,544
75-989.7000151424271982000175,544
64-1017.40014132530207187,904
53-110.30021130381831,638
42-12Out01734588,057
31-13Out114861,249
20-14Out298271
Total:90.8%10749877655543443322111,437,140
Games Above .500
Chance Will Make Playoffs