How are these numbers calculated?

Big Games

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

Week of 4/19100.0*Chance in playoffs100.0*Average seed
Defiant 0 Shock 4 +8.5
+1.3
Shock 4 Spark 0 +2.2
+1.0
Fusion 1 Excelsior 3 +0.8
Gladiators 3 Mayhem 1 -0.5
-0.2
Mayhem 1 Dragons 3 -0.4
Dragons 3 Outlaws 0 -0.4
Hunters 1 Gladiators 3 +0.3
-0.2
Dynasty 4 Fuel 0 +0.2
Charge 3 Reign 1 +0.2
Uprising 0 Titans 4 +0.2
-0.2
Fuel 0 Titans 4 +0.1
Uprising 0 Spitfire 4 +0.1
Week of 4/28100.0*Chance in playoffs100.0*Average seed
Spitfire 4 Eternal 0 -0.1
Spitfire 1 Hunters 3 +0.1
If winner is:HomeAway
Week of 5/3100.0*Chance in playoffs100.0*Average seed
Shock vs Fusion+0.8-0.8
Shock vs Dragons+0.8-0.8
Gladiators vs Uprising-0.4+0.4
Titans vs Defiant-0.2+0.2
Titans vs Dynasty-0.2+0.2
Outlaws vs Spitfire+0.1-0.1
Excelsior vs Reign-0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314151617181920Count
72-0In97302,278,841,653
61-1In304491604,555,473,064
50-2In1354275102,278,791,043
Total:In392292271009,113,105,760
Games Above .500
Chance Will Make Playoffs