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
Waterford Mott 26 Lakeland 4 -0.2
If winner is:HomeHome OTAway OTAway
Howell vs Pinckney-5.5-5.6+13.3+13.3
-0.5-0.5+1.1+1.2
Walled Lake Central vs Pinckney-5.7-5.2+11.6+11.9
-0.5-0.5+1.0+1.0
Lakeland vs Hartland-1.3-1.3*+0.4+0.6
-0.1-0.1+0.0+0.0
Milford vs Hartland-1.1-1.2*+0.5+0.6
-0.1-0.1+0.0+0.0
Wayne Memorial vs Brighton+0.5*+0.0*-0.2-0.9
+0.0*+0.0-0.0-0.1
Milford vs John Glenn-0.9*+0.2*+0.4+0.4
-0.1*+0.0*+0.0+0.0
Canton vs Wayne Memorial-0.7*-0.3*+0.5+0.4
South Lyon vs Grand Blanc-0.7*-0.7*+0.5+0.2
-0.1*-0.1*+0.0+0.0
South Lyon vs South Lyon East-0.5*-0.3*+0.7+0.3
Waterford Kettering vs Walled Lake Northern-0.5*-0.6*+0.5+0.3
-0.0-0.1+0.0+0.0
Salem vs Novi-0.4*+0.7*+0.4+0.3
-0.0*+0.1*+0.0+0.0
Waterford Mott vs Canton-0.3*-0.3*-0.0+0.2
Plymouth vs John Glenn-0.2*-0.2*+0.1+0.2
Waterford Kettering vs Northville+0.2*+0.3*+0.2-0.2
Howell vs Plymouth+0.2*-0.2*-0.4-0.2
South Lyon East vs Walled Lake Western+0.1*+0.1*-0.2-0.2
+0.0+0.0-0.0-0.1
Walled Lake Central vs Plymouth+0.1*-0.4*-0.3-0.1
Salem vs Lakeland+0.1*+0.5*-0.2-0.1
+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 Pinckney finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415161718192021Count
1313-0In583750566
1212-1In14483251279
1111-2In1175112144003,125
1010-3In0127417271861018,804
99-4In40161930261230079,518
88-5In00002102431229200240,573
77-698.8%0004132730196100529,735
66-760.2001720312611200871,174
55-86.700162034291011,063,367
44-90.100110334115954,844
33-10Out0084151609,846
22-11Out011782263,865
11-12Out049668,835
00-13Out01008,863
Total:31.0%000000011123456810121517164,713,394
Games Above .500
Chance Will Make Playoffs