How are these numbers calculated?

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 1/10100.0*Lottery seed
Calvisano 34 Bucharest 20 +0.8
Mont de Marsan 14 L Irish 20 -0.2
L Welsh 62 Prato 5 +0.0
Week of 1/17None
Games Above .500
Chance Will Make Playoffs