How are these numbers calculated?

Big Games

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

Week of 8/21100.0*Average seed
Blues 78 Demons 55 +0.2
Suns 97 Bombers 95 +0.1
Saints 97 Cats 97 -0.1
Week of 8/28100.0*Average seed
Dockers 108 Demons 54 +0.2
Saints 38 Swans 135 -0.2
Bombers 47 Tigers 74 +0.1
If winner is:HomeDrawAway
Week of 9/4100.0*Average seed
Demons vs Giants-0.3+0.1+0.2
Eagles vs Saints-0.2+0.1+0.2

What If

Chances based on how well the Saints finish out the regular season.   Explain

If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsTop 4123456789101112131415161718Count
Games Above .500
Chance Will Make Playoffs