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
Fusion 1 Excelsior 3 +2.4
+0.9
Gladiators 3 Mayhem 1 -0.2
-0.1
Defiant 0 Shock 4 -0.1
-0.1
Uprising 0 Spitfire 4 -0.2
Hunters 1 Gladiators 3 -0.1
Uprising 0 Titans 4 -0.1
Shock 4 Spark 0 -0.1
Week of 4/28100.0*Chance in playoffs100.0*Average seed
Spitfire 4 Eternal 0 -0.4
Spitfire 1 Hunters 3 +0.5
If winner is:HomeAway
Week of 5/3100.0*Chance in playoffs100.0*Average seed
Excelsior vs Reign+0.8-0.8
Outlaws vs Spitfire+0.7-0.7
Titans vs Defiant-0.1+0.1
Gladiators vs Uprising-0.1+0.1
Shock vs Fusion-0.1+0.1
Shock vs Dragons-0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314151617181920Count
61-0In12823314,556,510,409
50-1In4419406004,556,595,351
Total:In66326213009,113,105,760
Games Above .500
Chance Will Make Playoffs