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 -2.6
-0.1
Dallas 20 Houston 27 +1.2
New York 17 LA 14 +1.0
+0.1
Tampa Bay 25 DC 0 +0.2
If winner is:HomeTieAway
Week of 3/8100.0*Chance in playoffs100.0*Average seed
Houston vs Seattle-2.6+2.1+8.8
-0.1+0.1+0.3
Dallas vs New York-1.5+1.0+3.7
-0.0+0.0+0.1
LA vs Tampa Bay-0.8+1.1+1.3
-0.1+0.0+0.1
DC vs St Louis-0.2*-0.2+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 Seattle finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234Count
76-0-0In792173,299
6.55-0-198.5%33652455
65-1-087.9157312739,189
4-0-2In33673
5.54-1-165.02633504,241
54-2-041.60415533,466,641
3-1-269.2693113
4.53-2-118.0018711115,435
43-3-05.9661348,327,350
2-2-27.17573628
3.52-3-10.71415927,197
32-4-00.10208010,726,858
1-3-2Out109031
2.51-4-1Out69422,376
21-5-0Out1996,959,162
0-4-2Out10015
1-1.5Out1001,767,515*
Total:8.3%18296332,129,808

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs