How are these numbers calculated?

Big Games

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

Week of 2/2100.0*Average seed
TABC 39 Frisch 29 -0.3
If winner is:HomeAway
Week of 2/9100.0*Average seed
Westchester vs TABC+0.5-0.5

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
90-0In50505,457,120
Total:In50505,457,120
Games Above .500
Chance Will Make Playoffs