13.1 Key operational metrics (KPIs)
Major operational performance indicators in restaurant management are designed to provide managers with numerical signals about key aspects of the business, such as contribution margin, efficiency, and quality control. One of the first to mention is inventory turnover, which measures how often inventory is replenished over a given period.
A high inventory turnover reduces the risk of waste and helps ensure ingredient freshness, whereas excessively high turnover may indicate inefficiencies in purchasing or poor sales forecasting (Walker, 2021).
Food cost as a percentage of revenue is another key metric and is commonly targeted within the range of 28–35% in conventional operations. A higher percentage suggests weaker ingredient control or pricing practices, while a lower percentage may indicate unrealistic cost calculations or excessive price increases toward customers (Posist, 2022).
Labour cost as a percentage of revenue reflects human resource management. A desirable range is often considered to be 25–35%, where a lower percentage indicates a more efficient conversion of labour into revenue, while a higher percentage may be expected in specialised restaurants with more complex offerings or a higher level of service (Baker & Baker, 2017).
Average check, which measures the average amount spent by each customer, sheds light on pricing, menu choices, and marketing. The relationship between average check, quality, and the customer experience is a key factor in maximising revenue without reducing repeat visits (Silverman, 2011). Finally, seat and table utilisation measures how effectively dining capacity is used throughout the day or week, which is crucial for maximising revenue potential, especially during peak periods (Bragi, 2018).