How are these numbers calculated?

Big Games

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

Week of 8/15None
Week of 8/22100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Kangaroos 101 Crows 94 In
Giants 67 Magpies 75 -2.3
Bombers 108 Suns 89 +0.7
Power 140 Blues 37 No
Lions 48 Dockers 106 -0.1
If winner is:HomeDrawAway
Week of 8/29100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Kangaroos vs Demons+0.5+0.0-0.5
Blues vs Bombers+0.2+0.2-0.2
Dockers vs Power+0.2-0.2-0.2

What If

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

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