How are these numbers calculated?

Big Games

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

Week of 1/27100.0*Chance in playoffs100.0*Average seed
Rush 16 Stealth 12 -8.5
-0.3
Stealth 12 Swarm 14 -6.4
-0.2
Roughnecks 12 Mammoth 8 +1.2
If winner is:HomeAway
Week of 2/3100.0*Chance in playoffs100.0*Average seed
Mammoth vs Swarm-4.3+3.9
-0.1+0.1
Roughnecks vs Rush+0.7-0.8

What If

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

100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345Count
1412-0In10001,347,425
1311-1In9826,698,547
1210-2In8911038,991,315
119-3100.0%663310137,284,320
108-499.93256120325,449,995
97-596.2747424547,574,271
86-675.40175825670,342,008
75-739.6023760601,696,476
64-813.001387392,958,493
53-92.40298182,149,457
42-100.2010056,873,807
2-3Out10012,489,022*
Total:61.7%92132382,973,855,136

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs