How are these numbers calculated?

Big Games

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

Week of 4/8100.0*Chance in playoffs100.0*Average seed
Roughnecks 16 Stealth 12 -5.1
-0.3
Rock 10 Black Wolves 14 +1.0
+0.1
Bandits 14 Knighthawks 12 +0.1
Swarm 17 Mammoth 10 -0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Rock 12 Bandits 9 -0.1
-0.1

What If

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

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789Count
74-0Out93160677,686
3-6Out10020,517,722*
Total:Out019921,195,408

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs