How are these numbers calculated?

Big Games

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

Week of 5/1100.0*Relegated100.0*Average seed
Rochdale 1 Doncaster Rovers 2 -0.3
Bristol Rovers 0 Crewe Alexandra 1 Yes
Northampton Town 0 Blackpool 3 -0.2
Swindon Town 1 Ipswich Town 2 +0.1
If winner is:HomeDrawAway
Week of 5/8100.0*Relegated100.0*Average seed
Blackpool vs Bristol Rovers-0.1-0.1+0.5
Wigan Athletic vs Swindon Town+0.1+0.1-0.1

What If

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

If finish:ChanceChance will finish season at seed
TPW-D-Lwins titlePromoted123456789101112131415161718192021222324RelegatedCount

* Row combines multiple less frequent records.

Chance Will Win Championship