How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 1/1100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Revan2501 vs CaptKeiv-10.2+10.2
-10.2+10.2
-0.9+0.9
annedlrseown vs tritoxin-0.3+0.3
-0.3+0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-LplayoffsPromoted12345678910Count
75-0InYes74252232,701
64-175.4%75.4%12283522301,154,261
53-28.98.908374112102,307,141
42-30.00.00112333616202,307,471
31-4OutNo01103341151,152,539
20-5OutNo022672232,627
Total:17.7%17.7%4581517141310857,386,740
Games Above .500
Chance Will Make Playoffs