How are these numbers calculated?

Big Games

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

Week of 8/22100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
Fireballs 3 Misfits 2 In
+24.4
+1.1
PondScum 3 Mermen 4 -1.4
+0.2
Week of 8/29100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
Mermen 1 Fireballs 9 Yes
+0.4
Points
Chance Will Make Playoffs