When eating at a restaurant, you must consider the following additional costs to the price of your meal and sales tax:
- Service fee
- Tip
Both the service fee and tip are common additional costs associated with dining out. The service fee may be automatically added to your bill, especially for larger parties, while a tip is generally expected for good service.
The other options (interest fee and reservation cost) are less common in typical dining situations. A reservation cost would apply only if a specific restaurant charges for making a reservation, and an interest fee is usually not relevant to dining costs.
So, the most appropriate additional costs to consider would be the service fee and tip.