NW contests are pretty much all $20 base entry fee (one event included). What changes is the extra $ for 2nd and 3rd events. Some are +$5 and some are +$10. The change to $20 basic entry made it so our club could make a small profit, while at $10, we lost on every contest, sometimes bigtime.
As for food, at Stunt-a-Thon, we have a restaurant adjacent to the circle. At our new Dick Scobee Memorial (at Dick Scobee Municipal Airport), there are several restaurants within a block's walk. For the Fall contest, the RF Stevenson Memorial, it's a short drive to food, but we have had a sign-up for pizza, which is brought in by courier. We'd need volunteers to do food, and we just don't have them. I generally like to stop at a Safeway or Albertson's and buy ice, drinks, and a sandwich for lunch.
I can't read your receipt, but if you'd email me the original scan, I'd make it a more legible size and email it back...

Ciao, Steve