How are these numbers calculated?

Big Games

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

Week of 3/1100.0*Chance in playoffs100.0*Average seed
St Louis 23 Seattle 16 +8.3
+0.2
New York 17 LA 14 -3.4
-0.1
Tampa Bay 25 DC 0 -1.1
Dallas 20 Houston 27 -0.4
If winner is:HomeTieAway
Week of 3/8100.0*Chance in playoffs100.0*Average seed
DC vs St Louis-12.9+2.1+12.9
-0.4+0.1+0.4
Dallas vs New York+3.1*-1.6-3.1
+0.1*-0.0-0.1
LA vs Tampa Bay+2.7*+1.8-2.7
+0.1+0.1-0.1
Houston vs Seattle-0.4*-0.2+0.4

* 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 St Louis finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234Count
8.5-9In100153,935*
85-1-0In991902,038
4-0-2In1002
7.54-1-1In9913,588
74-2-0In89112,252,290
3-1-2In83176
6.53-2-199.8%821807,186
63-3-094.8474853,000,450
2-2-290.94545911
5.52-3-183.027561707,112
52-4-045.46404692,253,744
1-3-272.79642711
4.51-4-115.501560253,548
41-5-02.423563900,012
0-4-2Out1001
3.50-5-1Out1387743
30-6-0Out298153,259
Total:74.9%48271699,637,936

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs