How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/9100.0*Chance in playoffs100.0*Major Playoff100.0*Lower Division100.0*Average seed
Nigma 1 OG 2 +16.9
+6.2
-6.0
+0.8
OG 1 Vikin.gg 2 -12.0
-11.0
+1.0
-0.6
Vikin.gg 0 HCE 2 +1.6
+0.1
+0.1
[A] 2 Tundra 1 +1.2
-1.0
-0.6
Secret 2 [A] 1 +1.0
+1.7
+0.3
Week of 2/16100.0*Chance in playoffs100.0*Major Playoff100.0*Lower Division100.0*Average seed
Liquid 2 OG 1 -25.0
-0.7
Vikin.gg 1 Tundra 2 +12.5
+0.3
Vikin.gg 1 [A] 2 +3.1
No
+0.1
Nigma 2 Tundra 0 -2.2
+0.1
-0.1
Secret 2 HCE 0 -0.4
No
+0.2
-0.1
Week of 2/23100.0*Chance in playoffs100.0*Major Playoff100.0*Lower Division100.0*Average seed
Nigma 2 HCE 0 -37.5
-0.5
If winner is:HomeAway
Liquid vs [A]Out+25.0
-0.5+0.5
OG vs Secret+25.0Out
+0.5-0.5

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seedLower
TPW-LplayoffsPlayoff12345678DivisionCount
41-050.0%No5050No20,581,824
30-1OutNo100No20,572,912
Total:25.0%No2575No41,154,736
Points
Chance Will Make Playoffs