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 -5.2
+10.8
-0.5
Vice 0 Fnatic 2 -0.3
-4.0
+0.1
Fnatic 2 496 0 -0.2
-0.4
+0.0
TNC 2 BOOM 0 -0.4
Vice 0 Neon 2 -0.9
+0.0
Week of 2/17100.0*Chance in playoffs100.0*Demoted100.0*Average seed
BOOM 2 XctN 0 Out
+7.6
-0.4
T1 2 Vice 0 Out
-4.2
+0.1
Vice 0 BOOM 2 -9.0
+0.1
496 0 TNC 2 +0.7
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
21-0OutNo100No80,498,549,003
10-1OutNo0100Yes80,498,868,661
Total:OutNo5005050.0%160,997,417,664
Points
Chance Will Make Playoffs