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*Average seed
Toulon 45 Blues 25 -0.1
Ulster 23 Glasgow 6 +0.1
Week of 1/18100.0*Average seed
Connacht 25 Zebre 20 -0.1
Games Above .500
Chance Will Make Playoffs