The food will be consumed from each counter very close to evenly, regardless of what food is on it. You can record how many plates one counter has, and then 24 hrs later record how many plates that same counter has. The rest of the counters with food that entire time will be the same, give or take a few. If you add counters of food or food sells out on counters in that 24 hr period, your numbers will be messed up, so start over.