Do you make money making fish wrapped in spicy wind paper?
It depends on where you operate and whether the local people like this spicy taste. The location of your shop is very important, whether it is in a busy place or not, and how the passenger flow is. It is best not to have similar restaurants around. It is not very important to do a good job in market research and cost accounting. The most important thing is that you have excellent skills and do your own market positioning. There is no big problem.