How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/20100.0*Average seed
Riptide 9 Leafs 2 -0.2
OCHC1 6 OCHC2 0 -0.1
Wildcats 0 Dragons 6 -0.0
Week of 2/28100.0*Average seed
Leafs 4 Dragons 2 +0.3
OCHC1 7 Kings 0 -0.1
If winner is:HomeTieAway
Week of 3/5100.0*Average seed
Dragons vs OCHC1+0.3+0.3-0.4
OCHC2 vs Leafs-0.4-0.4+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678910Count
231-0-0In623866,679,528
21-22In10033,629,492*
Total:In4159100,309,020

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs