How are these numbers calculated?

Big Games

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

Week of 2/10100.0*Chance in playoffs100.0*Demoted100.0*Average seed
XctN 0 T1 2 -10.5
+20.5
-0.8
Fnatic 2 496 0 -0.5
-2.0
Vice 0 Neon 2 +0.3
-4.8
+0.2
Vice 0 Fnatic 2 -0.2
-3.5
+0.1
TNC 2 BOOM 0 -0.2
-1.0
Week of 2/17100.0*Chance in playoffs100.0*Demoted100.0*Average seed
BOOM 2 XctN 0 Out
+17.7
-0.6
T1 2 Vice 0 Out
-5.2
+0.2
Vice 0 BOOM 2 -20.8
+0.3
496 0 TNC 2 +4.1
If winner is:HomeAway
Week of 2/24100.0*Chance in playoffs100.0*Demoted100.0*Average seed
XctN vs 496NoYes
+1.0-1.0

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
21-0OutNo100No26,095,437,369
10-1OutNo0100Yes26,095,296,519
Total:OutNo5005050.0%52,190,733,888
Points
Chance Will Make Playoffs