Days Inventory Calculation (DIC) is a business metric that provides valuable insight into the efficiency of a company’s inventory management. It measures the average number of days that it takes for a company to turn its inventory into sales. DIC is calculated by dividing the total value of a company’s inventory at the end of a certain time period by the cost of goods sold during that same time period, then multiplying the result by the number of days in the time period. By understanding their DIC, businesses are able to evaluate how efficiently they are managing their inventory and accurately plan for future needs.