The restaurant business is a serious business which requires a great deal of material and time expenditure. The main criteria for success are: a good location, tasty cuisine and high service. Prospects for development may include the opening of a restaurant chain.
This is a very serious issue, and here you need to understand that in each case the investment will be different. But making a business plan for a restaurant with calculations, you need to know what the items of expenditure are, so you can substitute your own figures and get a finished result.