How are these numbers calculated?

Big Games

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

Week of 3/13100.0*Chance in playoffs100.0*Average seed
Hammerheads 6 RedHawks 4 -0.1
Week of 3/20100.0*Chance in playoffs100.0*Average seed
Rhinos 5 TuukkaDump 3 In
+1.1
TuukkaDump 2 Shenanigans 6 +3.8
+0.1
Week of 3/27None
Points
Chance Will Make Playoffs