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
Dragons 3 Outlaws 0 +19.0
+2.0
Mayhem 1 Dragons 3 +12.0
+1.8
Charge 3 Reign 1 +1.6
+0.2
Shock 4 Spark 0 +1.6
+0.1
Uprising 0 Titans 4 +1.2
+0.1
Hunters 1 Gladiators 3 +1.2
+0.1
Fusion 1 Excelsior 3 +1.0
+0.1
Dynasty 4 Fuel 0 +0.6
Gladiators 3 Mayhem 1 -0.6
+0.1
Uprising 0 Spitfire 4 +0.3
Defiant 0 Shock 4 -0.2
+0.1
Fuel 0 Titans 4 +0.2
Week of 4/28100.0*Chance in playoffs100.0*Average seed
Fuel 3 Outlaws 1 -4.3
-0.2
Spitfire 1 Hunters 3 -3.9
-0.1
Spitfire 4 Eternal 0 +2.7
+0.1
Valiant 2 Dynasty 3 -2.3
-0.1
Dynasty 4 Outlaws 0 -2.2
-0.1
Hunters 1 Spark 3 +1.3
Eternal 2 Spark 3 -1.0
-0.1
Fuel 4 Valiant 0 -0.1
If winner is:HomeAway
Week of 5/3100.0*Chance in playoffs100.0*Average seed
Justice vs Dragons-25.0+25.0
-1.6+1.6
Shock vs Dragons-25.0+25.0
-1.6+1.6
Valiant vs Hunters+8.0-8.0
+0.2-0.2
Shock vs Fusion+7.3-7.3
+0.2-0.2
Mayhem vs Fuel+7.1-7.1
+0.2-0.2
Titans vs Dynasty+4.2-4.2
+0.2-0.2
Spark vs Dynasty-4.1+4.1
-0.1+0.1
Gladiators vs Uprising+0.6-0.6
+0.1-0.1
Uprising vs Justice-0.6+0.6
-0.1+0.1
Excelsior vs Reign+0.1-0.1
Eternal vs Defiant-0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314151617181920Count
52-0In0417532332,278,759,317
41-146.5%114313217404,555,474,012
30-20.10171829271432,278,872,431
Total:48.3%0141413171610677419,113,105,760
Games Above .500
Chance Will Make Playoffs