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
bc 2 INF 0 -0.9
No
+2.5
-0.1
EGB 2 SG 0 +0.2
-0.2
-0.1
INF 1 NoPing 2 Out
+26.9
-0.6
DEF 0 UNK 2 -0.1
NoPing 1 TP 2 +0.9
-0.1
Week of 2/17100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
INF 2 DEF 0 -19.5
+0.5
UNK 0 NoPing 2 +2.0
-0.1
EGB 0 TP 2 -1.3
+0.1
If winner is:HomeAway
Week of 2/24100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
INF vs EGBNoYes
+0.5-0.5

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
31-0OutNo100No74,424,565,192
20-1OutNo100Yes74,424,543,752
Total:OutNo505050.0%148,849,108,944
Points
Chance Will Make Playoffs