How are these numbers calculated?

Big Games

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

Week of 2/11100.0*Chance in playoffs100.0*Demoted100.0*Average seed
VP 2 TSpirit 1 +6.8
-0.4
+0.1
NT 1 EXTR 2 +6.1
-24.4
+0.8
ASM.GMB 1 Na`Vi 2 +0.8
-1.2
Empire 1 Unique 2 +0.4
+4.4
-0.1
Unique 2 NT 0 +0.2
+0.9
Week of 2/18100.0*Chance in playoffs100.0*Demoted100.0*Average seed
Empire 0 EXTR 2 +14.8
No
+0.8
Na`Vi 1 TSpirit 2 -12.5
-0.4
ASM.GMB 2 Unique 0 +0.1
If winner is:HomeAway
Week of 2/25100.0*Chance in playoffs100.0*Demoted100.0*Average seed
ASM.GMB vs EXTROut+25.0
-1.0+1.0
TSpirit vs Unique-25.0+25.0

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
41-050.0%No5050No22,102,307,731
30-1OutNo05248No22,102,605,917
Total:25.0%No25252624No44,204,913,648
Points
Chance Will Make Playoffs