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
Houston 32 Seattle 23 -11.0
-0.3
Dallas 12 New York 30 +4.3
+0.1
LA 41 Tampa Bay 34 -2.4
-0.1
DC 15 St Louis 6 -0.3
If winner is:HomeTieAway
Week of 3/15100.0*Chance in playoffs100.0*Average seed
Seattle vs LA+10.7*-0.0-10.7
+0.3*+0.0-0.3
DC vs Dallas+3.1*+1.2-3.1
+0.1*+0.0-0.1
New York vs Houston+0.5*+0.8-0.5
Tampa Bay vs St Louis+0.2*+0.7-0.2

* 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
65-0-097.8%18802303,745
5.54-0-188.5485111,142
54-1-062.81623611,502,060
3-0-2Out1001
4.53-1-132.4325894,717
43-2-010.01059313,003,733
2-1-2Out43577
3.52-2-11.3134657,262
32-3-0Out16843,003,482
1-2-2Out11899
2.51-3-1Out3974,863
21-4-0Out01001,500,851
0-3-2Out1001
1-1.5Out100306,063*
Total:16.0%11529559,637,936

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs