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
OCHC1 10 Ducks 3 +23.9
+0.6
Riptide 8 Wave 1 +0.3
+0.0
Sunday, 3/13100.0*Chance in playoffs100.0*Average seed
OCHC1 3 Wave 1 +5.1
+0.1
Ducks 3 Riptide 8 +0.5
-0.0
If winner is:HomeHome OTHome SOAway SOAway OTAway
Riptide vs OCHC1-0.5-0.5-0.5+0.5+0.5+0.5

What If

Chances based on how well the OCHC1 finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTplayoffs1234Count
610-0In10017,035,314
4-5In10017,024,094*
Total:In505034,059,408

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs