How are these numbers calculated?

Big Games

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

Week of 6/28100.0*Chance in playoffs100.0*Play-in100.0*Average seed
Valiant 2 Spark 3 +11.2
+1.0
+0.6
Spark 4 Mayhem 0 +10.7
+0.3
+0.6
Shock 4 Spitfire 0 +2.2
+0.1
Valiant 4 Spitfire 0 +1.9
+0.1
Dynasty 3 Eternal 1 -1.7
-0.1
Dynasty 3 Hunters 0 -1.7
-0.1
Charge 1 Dragons 3 -1.6
-0.1
Fusion 3 Uprising 2 -1.6
-0.1
Gladiators 4 Defiant 0 -1.5
-0.1
Titans 4 Gladiators 0 +1.3
+0.1
Excelsior 3 Fuel 2 +0.8
Hunters 3 Shock 2 -0.2
-0.1
If winner is:HomeAway
Week of 7/6100.0*Chance in playoffs100.0*Play-in100.0*Average seed
Dragons vs Charge-1.5+1.5
-0.1+0.1
Justice vs Fusion+1.5-1.5
+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-LplayoffsPlay-in1234567891011121314151617181920Count
217-0InYes0177227,289,746
206-1InYes0050500050,243,462
195-2100.0%Yes2074500150,744,666
184-399.7Yes361315000251,226,048
173-489.4Yes01841319100251,233,388
162-539.8Yes019303719400150,760,059
151-62.9100.0%0031637331010050,237,087
140-70.098.900421382781007,287,464
Total:81.0%100.0%0083722151063100000919,021,920
Games Above .500
Chance Will Make Playoffs