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*Lower Division100.0*Average seed
[A] 2 Tundra 1 -16.2
+5.0
-0.6
OG 1 Vikin.gg 2 -7.0
+1.8
-0.1
Vikin.gg 0 HCE 2 +4.1
-4.9
+0.2
Nigma 1 OG 2 +2.4
+0.3
Secret 2 [A] 1 +0.4
+0.1
Week of 2/16100.0*Chance in playoffs100.0*Lower Division100.0*Average seed
Nigma 2 Tundra 0 -24.5
+15.4
-0.8
Vikin.gg 1 Tundra 2 +23.0
No
+1.1
Liquid 2 OG 1 +11.3
+23.2
-0.2
Vikin.gg 1 [A] 2 -4.3
-1.9
Secret 2 HCE 0 -0.1
-0.3
+0.0
Week of 2/23100.0*Chance in playoffs100.0*Lower Division100.0*Average seed
Nigma 2 HCE 0 +12.9
+0.1
If winner is:HomeAway
Liquid vs [A]Out+33.1
-1.2+0.7
OG vs SecretOut+5.1
-0.6+0.1

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seedLower
TPW-LplayoffsPlayoff12345678DivisionCount
30-059.0%No59536No115,745,808
Total:59.0%No59536No115,745,808
Points
Chance Will Make Playoffs