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*Major Playoff100.0*Demoted100.0*Average seed
TNC 2 BOOM 0 +23.9
-3.7
+0.7
XctN 0 T1 2 +2.1
-0.1
Vice 0 Fnatic 2 -2.0
-1.0
-0.0
Fnatic 2 496 0 +0.7
-0.1
+0.0
Vice 0 Neon 2 +0.1
Week of 2/17100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
496 0 TNC 2 +11.9
+1.0
+0.4
T1 2 Vice 0 -2.5
-0.0
Neon 1 Fnatic 2 -1.0
+1.7
BOOM 2 XctN 0 -0.1
Vice 0 BOOM 2 -0.0
If winner is:HomeAway
Week of 2/24100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
Neon vs T1+22.2-44.4
No+11.1
+0.2-0.3
Fnatic vs TNC-11.1+22.2
No+11.1
-0.5+1.0

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
51-0100.0%16.7%178300No53,676,202,541
40-166.7No67330No107,321,215,123
Total:77.8%5.6%62844220No160,997,417,664
Points
Chance Will Make Playoffs