Predictive method for analysing a menu

A predictive method, implemented by a calculator, for analysing a menu comprising the steps of:

• acquiring a menu of a restaurant business, said menu comprising a plurality of potential items that are representative of foods and/or beverages that the restaurant business can offer for sale and a plurality of actual items that are representative of foods and/or beverages that the restaurant business offers for sale;
• acquiring in at least one pre-set period of time sales data on the restaurant business that are representative at least of sales volumes of each actual item;
• associating with each potential item at least one respective composition parameter that is representative of a property of said potential item;
• applying a predictive statistical model so as to predict a future sales volume for each actual item as a function of at least said sales data and for each potential item as a function at least of the respective composition parameter;
• determining a saleability parameter of each actual and potential item at least as a function of the respective future sales volume;
• identifying an actual item as switchable to a potential item and vice versa as a function of the respective saleability parameter.