How are these numbers calculated?

Big Games

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

Week of 3/8100.0*Chance in playoffs100.0*Average seed
LA 41 Tampa Bay 34 -7.7
-0.2
Dallas 12 New York 30 -3.4
-0.1
DC 15 St Louis 6 +0.5
-0.0
Houston 32 Seattle 23 +0.2
If winner is:HomeTieAway
Week of 3/15100.0*Chance in playoffs100.0*Average seed
Tampa Bay vs St Louis+10.6-6.5-10.6
+0.3-0.2-0.3
DC vs Dallas-2.4-3.5+2.4
-0.1-0.1+0.1
New York vs Houston-2.8*-1.4+2.8
-0.1-0.0+0.1

* 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 Tampa Bay finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234Count
65-0-0100.0%77230302,195
5.54-0-188.83059111,209
54-1-069.614553011,502,835
4.53-1-112.601256314,920
43-2-05.9648463,003,985
2-1-2Out1003
3.52-2-1Out10907,080
32-3-0Out6943,003,350
1-2-2Out1005
1-2.5Out1001,812,354*
Total:15.8%51122639,637,936

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs