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 +21.7
+1.2
-10.8
+0.9
Vice 0 Fnatic 2 -1.4
-0.2
-1.9
Vice 0 Neon 2 +1.0
-2.1
Fnatic 2 496 0 +1.0
+0.9
-0.8
+0.1
XctN 0 T1 2 +0.2
+0.4
-0.3
Week of 2/17100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
496 0 TNC 2 +25.0
+6.3
+0.8
T1 2 Vice 0 -12.4
+0.5
-0.2
Neon 1 Fnatic 2 -6.3
+3.1
-0.1
BOOM 2 XctN 0 +0.1
Vice 0 BOOM 2 -0.1
If winner is:HomeAway
Week of 2/24100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
Fnatic vs TNC-25.0In
No+12.5
-0.9+0.9
Neon vs T1In-25.0
No+12.5
+0.1-0.1

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
51-0In25.0%25750No26,095,497,617
40-150.0%No5050No26,095,236,271
Total:75.0%12.5%12382525No52,190,733,888
Points
Chance Will Make Playoffs