How are these numbers calculated?

Big Games

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

Week of 11/27100.0*Chance in playoffs100.0*Average seed
Best Team 12 DaBoy69 2 -25.7
-0.8
Susano'o 14 kaligirl 24 -1.8
-0.1
pappolapappa 18 TD's N Beer 5 -0.3
Zmerl 30 the team 29 -0.2
Week of 12/11100.0*Chance in playoffs100.0*Average seed
pappolapappa 38 DaBoy69 11 -0.6
Best Team 26 Susano'o 15 -0.2
Games Above .500
Chance Will Make Playoffs