I think it is very simple...

Using WBR's format for figuring backgate revenue, the backgate revenue is $12,600 without entry fees.
4 classes
30 cars/class (How many cars showed up last year?)
3.5 people/car (I believe this is the average that most promoters use)
$30 pitpass

Total feature payouts (20 cars) for Sprint Cars, Midgets, Mini-Sprints and Thunder Cars is $18,464

Basic Math...
$12,600
-$18,464
-$5,864

Even with the entry fees it's still a negative number.

Of course, no one "likes" an entry fee... but I'd say it's "fair".

Oh BTW... it's my website, I'll post wherever I want.