How are these numbers calculated?

Big Games

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

Week of 7/24100.0*Chance in playoffs100.0*Average seed
Cannons 18 Nationals 10 -1.2
-0.1
Outlaws 15 Machine 11 +0.8
+0.1
Week of 8/7None
Games Above .500
Chance Will Make Playoffs