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
Northampton Town 0 Blackpool 3 +18.0
-0.3
Rochdale 1 Doncaster Rovers 2 -16.5
+0.2
Swindon Town 1 Ipswich Town 2 -0.9
+0.1
Hull City 3 Wigan Athletic 1 -0.3
Bristol Rovers 0 Crewe Alexandra 1 -0.1
If winner is:HomeDrawAway
Week of 5/8100.0*Relegated100.0*Average seed
Sunderland vs Northampton Town+25.6-19.1-45.2
-0.3+0.2+0.5
Milton Keynes D vs Rochdale-19.6+9.9+29.1
+0.2-0.1-0.3

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titlePromoted123456789101112131415161718192021222324RelegatedCount
471-0-0NoNo772323.2%11,711,211
450-1-0NoNo514949.312,415,364
440-0-1NoNo69494.029,871,985
Total:NoNo326868.4%53,998,560
Points
Chance Will Win Championship