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 2/23100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
Aster vs MagMa-0.6+4.9
No+0.0
+2.8-24.2
-0.1+0.5
MagMa vs iG+4.9-0.6
+0.0No
-24.2+2.8
+0.5-0.1
Elephant vs MagMa-0.9+2.0
No+0.0
+12.2-26.2
-0.2+0.4
PSG.LGD vs VG-0.6+0.3
+0.1-0.1
EHOME vs Elephant-0.6+0.3
-4.5+2.1
+0.1-0.0
VG vs Elephant+0.3-0.6
No+0.0
-2.7+5.7
+0.0-0.1
PSG.LGD vs iG-0.6+0.1
EHOME vs LBZS-0.1+0.4
+6.7-19.8
-0.0+0.1
Aster vs LBZS-0.0+0.5
-0.1+1.4
+0.0-0.1
LBZS vs iG+0.3-0.0
+1.4-0.1
-0.1+0.0
PSG.LGD vs EHOME-0.1+0.2
-3.6+7.8
VG vs Aster+0.1-0.0
-0.1+0.0

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
43-073.8%0.0%012250251No4,380,328
32-19.9No01031501009.5%77,544,327
21-2OutNo12574074.5442,753,305
10-3OutNo491696.4633,021,656
Total:0.9%0.0%000131579381.8%1,157,699,616
Points
Chance Will Make Playoffs