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
Tampa Bay 25 DC 0 +7.1
+0.2
New York 17 LA 14 -1.0
-0.1
St Louis 23 Seattle 16 -0.4
If winner is:HomeTieAway
Week of 3/8100.0*Chance in playoffs100.0*Average seed
LA vs Tampa Bay-6.5-3.8+10.3
-0.2-0.1+0.2
Dallas vs New York+2.8-1.5-6.9
+0.1-0.1-0.1
DC vs St Louis-4.0-6.8+2.1
-0.1-0.2+0.0
Houston vs Seattle+0.1*+0.3-0.3

* 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
76-0-0In1000182,679
6.55-0-1In74261,030
65-1-098.8%485111,526,880
4-0-2In50502
5.54-1-189.915751007,228
54-2-074.56692515,395,577
3-1-276.98692313
4.53-2-140.904151920,465
43-3-025.702656189,760,613
2-2-25.05554020
3.52-3-14.24445227,122
32-4-02.5234649,523,691
1-3-2Out326822
2.51-4-1Out79316,948
21-5-0Out5954,729,616
0-4-2Out1007
1-1.5Out100937,895*
Total:26.4%423324232,129,808

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs