My food truck business will be up and running shortly. Some of the areas I plan to operate in charge as much as $650 per week to park your food truck (this particular area is a very popular tourist attraction). Other areas charge much cheaper rates such as $50 per day or less.

I'm trying to figure out a way to increase the price of all my food items by 15% or more to help cover operating costs when I serve food in this particular area or other areas where it costs considerably more to operate. I see where you can create multiple prices/sizes/SKUs for each item. Is there a way to do this percentage increase across all items other than manually creating a separate price point for each item? Could it be done with a tax? If so, would I just name it the area I'm operating in instead of tax so and so? I don't know how the tax will print out on the receipt, and it's likely customers would notice the difference in tax from the normal 6% state sales tax. When I was looking for a thread to answer my question, I read a few posts about charging people a surcharge to make up for the credit card processing fees and having to fill out forms before one does this. I am NOT trying to do this. I just want to make sure that whatever price increase I assign to my items won't be misconstrued as a credit card surcharge to the customer.

Any help would be appreciated.

Thank you