How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Saturday, 3/12100.0*Chance in playoffs100.0*Average seed
Mariners 2 Dragons 9 -24.6
-0.6
Leafs 5 OCHC2 1 +0.5
If winner is:HomeHome OTHome SOAway SOAway OTAway
Sunday, 3/13100.0*Chance in playoffs100.0*Average seed
Leafs vs Mariners-5.3-3.5-3.5+25.5+25.6+39.8
-0.1-0.0-0.0+0.3+0.3+0.6
OCHC2 vs Mariners-4.8-1.3-1.3+3.5+3.5+4.2
-0.5-0.4-0.4+0.4+0.4+0.5
Dragons vs OCHC2-0.4-1.2-1.2+0.5+0.5+5.1
+0.0+0.0+0.0-0.0-0.0-0.1
Dragons vs Leafs+1.9+1.3+1.3-0.6-0.6-2.1

What If

Chances based on how well the Mariners finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTplayoffs1234Count
420-073.3%865272,002,624
310-17.579123,402,063
211-00.91861313,613,065
00-2Out100599,512
0-1Out10014,442,144*
Total:5.4%05455034,059,408

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs