How are these numbers calculated?

Big Games

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

If winner is:HomeHome OTAway OTAway
Week of 9/6100.0*Chance in playoffs100.0*Average seed
Hitmen vs QCRaiders-21.6-21.6InIn
-0.3-0.3+0.7+0.7
Spartans vs Threat-21.9-21.9+5.5+5.5
-0.2-0.2+0.1+0.1

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
32-0In1009,643,875
21-188.1%881234,950,349
10-2Out10030,680,248
Total:53.7%13414675,274,472
Games Above .500
Chance Will Make Playoffs