How are these numbers calculated?

Big Games

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

Week of 1/11100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Quins 47 Connacht 8 -0.0
-0.1
-0.1
Saints 18 Castres 12 +0.2
Toulouse 35 Treviso 14 +0.0
Week of 1/18100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Connacht 25 Zebre 20 +0.0
Glasgow 27 Saints 20 -0.9
Games Above .500
Chance Will Make Playoffs