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
XctN 0 T1 2 +18.4
+1.0
-12.2
+0.9
Fnatic 2 496 0 -4.2
No
-2.2
Vice 0 Fnatic 2 -1.9
-0.6
-1.1
TNC 2 BOOM 0 +0.7
-0.2
Vice 0 Neon 2 +0.2
-0.7
-2.2
+0.1
Week of 2/17100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
T1 2 Vice 0 +22.8
+0.5
496 0 TNC 2 -18.8
-0.3
Neon 1 Fnatic 2 -5.2
+0.1
BOOM 2 XctN 0 +0.4
-0.1
If winner is:HomeAway
Week of 2/24100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
Neon vs T1Out+37.5
-0.6+0.6
Fnatic vs TNC+12.5-12.5
+0.4-0.4

What If

Chances based on how well the T1 finish out the regular season.   Explain

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
51-075.0%No502525No26,095,433,444
40-1OutNo100No26,095,300,444
Total:37.5%No251362No52,190,733,888
Points
Chance Will Make Playoffs