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*Average seed
Vice 0 Neon 2 +0.6
+11.8
+0.2
Fnatic 2 496 0 -0.4
-10.4
-0.1
XctN 0 T1 2 -0.4
-1.6
-0.1
Vice 0 Fnatic 2 -0.2
-4.5
-0.1
TNC 2 BOOM 0 +0.1
-0.1
Week of 2/17100.0*Chance in playoffs100.0*Major Playoff100.0*Average seed
496 0 TNC 2 -6.3
-0.1
Neon 1 Fnatic 2 -3.1
-37.5
-0.7
T1 2 Vice 0 -1.6
-1.0
-0.1
If winner is:HomeAway
Week of 2/24100.0*Chance in playoffs100.0*Major Playoff100.0*Average seed
Neon vs T1In-12.5
+25.0-25.0
+0.9-0.9
Fnatic vs TNCIn-12.5
No+25.0
-0.1+0.1

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
61-0In50.0%5050No26,095,300,444
50-175.0%0.0007525No26,095,433,444
Total:87.5%25.0%25253813No52,190,733,888
Points
Chance Will Make Playoffs