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

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314151617181920Count
11-0Out425492204,556,489,169
00-1Out533624,556,616,591
Total:Out2122728319,113,105,760
Games Above .500
Chance Will Make Playoffs