How are these numbers calculated?

Big Games

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

Week of 2/26100.0*Average seed
Strange Brews 0 Thrashers 9 +0.2
Monarchs 3 Vandals 1 -0.1
Week of 3/5100.0*Average seed
Strange Brews 1 Thrashers 4 +0.2
Monarchs 6 Vandals 0 -0.2
If winner is:HomeTieAway
Week of 3/12100.0*Average seed
Thrashers vs Vandals+0.3-0.2-0.2
Monarchs6C vs Thrashers-0.2-0.2+0.3
Monarchs vs Strange Brews-0.2-0.2+0.3

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456Count
342-0-0In1009,876,712
331-0-1In52482,073,921
321-1-0In475319,717,360
0-0-2In4753108,941
30-31In10011,950,614*
Total:In475343,727,548

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs