How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 2/23100.0*Chance in playoffs100.0*Major Playoff100.0*Demoted100.0*Average seed
PSG.LGD vs VG+23.7-23.7
+3.7-3.7
-7.2+7.2
+0.8-0.8
PSG.LGD vs EHOME+21.4-21.4
+3.3-3.3
-9.3+9.3
+0.8-0.8
PSG.LGD vs iG+18.2-18.2
+3.7-3.7
-6.8+6.8
+0.7-0.7
Elephant vs MagMa-5.1+5.1
-0.5+0.5
-4.5+4.5
-0.1+0.1
EHOME vs Elephant+3.0-3.0
+0.4-0.4
+0.5-0.5
+0.1-0.1
LBZS vs iG+2.7-2.7
+0.8-0.8
+0.9-0.9
+0.1-0.1
Aster vs iG+2.2-2.2
-1.6+1.6
-0.5+0.5
+0.1-0.1
VG vs Aster-2.2+2.2
+2.1-2.1
+0.7-0.7
-0.1+0.1
EHOME vs LBZS-2.0+2.0
-0.1+0.1
+0.3-0.3
-0.1+0.1
MagMa vs iG+1.7-1.7
+0.9-0.9
+3.7-3.7
VG vs Elephant+1.4-1.4
+0.6-0.6
-0.4+0.4
+0.1-0.1
Aster vs LBZS-0.7+0.7
-1.7+1.7
-1.3+1.3
Aster vs MagMa+0.5-0.5
-1.8+1.8
-4.0+4.0

What If

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

100100100100100100100100
If finish:Chance inMajorChance will finish regular season at seed
TPW-LplayoffsPlayoff12345678DemotedCount
53-0In28.0%2853162No39,796,205
42-180.9%0.5183340181No119,065,890
31-212.2No0124437706.8%119,075,569
20-3OutNo44147855.539,783,008
Total:47.4%3.7%41014202419819.5%317,720,672
Points
Chance Will Make Playoffs