How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Week of 4/23100.0*Chance in playoffs100.0*Average seed
Levadiakos vs AEK+11.4+3.6-4.6
+0.1+0.0-0.0
Larissa vs XanthiOutOut+5.4
-0.1-0.1+0.1
Panathinaikos vs Atromitos-0.1-0.1+1.7
Platanias vs PAOK-0.1+0.0+0.0

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsUEFA CL12345678910111213141516RelegatedCount
512-0-015.6%No01684No21,344,620
48-49OutNo100No36,102,442*
470-2-0OutNo9010No4,704,827
460-1-1OutNo9010No6,744,700
450-0-2OutNo7426No1,825,219
Total:4.7%No05932No70,721,808

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs