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 +0.1
Wildcats 0 Dragons 6 -0.0
Week of 2/28100.0*Average seed
Leafs 4 Dragons 2 +0.4
Week of 3/5None

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678910Count
280-0-0In100100,309,020
Total:In100100,309,020
Games Above .500
Chance Will Make Playoffs