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
Riptide 8 Wave 1 +24.0
+0.6
OCHC1 10 Ducks 3 +0.3
+0.0
Sunday, 3/13100.0*Chance in playoffs100.0*Average seed
Ducks 3 Riptide 8 +23.3
+0.4
OCHC1 3 Wave 1 +2.4
+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 Riptide finish out the regular season.   Explain

100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTplayoffs1234Count
610-0In1004,818,910
4-5In1004,819,026*
Total:In50509,637,936

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs