How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 1/28100.0*Chance in playoffs100.0*Average seed
Metro 7 TriCity 1 -4.5
-0.6
Baltimore 3 TriCity 1 Out
-0.5
Piedmont 2 Baltimore 5 -1.3
+0.0
Navy 1 Bowie 3 -1.2
-0.1
Harford 7 Potomac 3 -0.7
Bowie 2 Metro 1 -0.6
+0.1
Harford 4 Navy 0 -0.1
Reston 1 Howard 3 +0.1
Reston 3 Hagerstown 2 -0.2
Week of 2/4100.0*Chance in playoffs100.0*Average seed
TriCity 0 Potomac 1 -0.4
Harford 2 TriCity 0 -0.4
Bowie 4 Reston 2 +0.2
Harford 0 Piedmont 3 -0.1
Week of 2/11100.0*Chance in playoffs100.0*Average seed
Piedmont 3 Metro 3 +0.0
If winner is:HomeHome OTTieAway OTAway
TriCity vs Navy+0.5-0.3-0.3-0.3-0.3
TriCity vs Bowie+0.5-0.3-0.3-0.3-0.3

What If

Chances based on how well the TriCity finish out the regular season.   Explain

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLTplayoffs1234567891011Count
172-000Out1002,944,578
13-16Out10017,627,766*
Total:Out148620,572,344

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs