days sales in inventory

Ford , with a beginning inventory of $10.79B and an ending inventory of $10.81B, had an average inventory of $10.80B. Therefore, by dividing the average inventory of $10.80B by the total cost of goods sold of $114.43B, and multiplying by 365, Ford’s DSI equals 34.45 days.

What is days sales in inventory ratio?

Days sales of inventory is a calculation used to measure the average number of days it takes a company to sell its inventory. All inventories, whether in the form of raw materials, work in progress, or finished goods, are considered.

However, for companies with goods still in production, you have to include them to get accurate ending inventory. This days sales in inventory is due to the fact that older items signal an obsolete inventory, which is worth a lot less than a fresh inventory.

How do you calculate days sales in inventory?

It is vital to compare your days in inventory numbers to the DIO of your competitors and similar businesses within your industry. While companies operating in the steel industry have average days in inventory levels of 50, a DIO calculation of 6 is considered optimum for companies in the food sector. Essentially, sales in inventory can look into how long the entire inventory a company has will last. It’s critical information for management to understand, as well, so they can monitor the rate of inventory turnover and inventory levels. Plus, analyzing these details can help prevent theft of obsolescence, increase cash flow, and reduce costs. A retail corporation, such as an apparel company, is a good example of a company that uses the sales of inventory ratio to determine the cost of inventory.

Since this is a great efficiency measure, there is no action to be taken. If DSI were much higher and unsustainable, such as 15 days, then action would need to be taken. The owner would need to produce less fruit, change up their marketing and sales strategies, check their pricing strategy, and/or change their location for a better chance at selling their fruit. In sales inventory over between 30 and 60 days can be a good ratio to strive for. Days of inventory can lead to a good inventory balance and stock of inventory. This is because the final figure that’s determined can show the overall liquidity of a business. Investors and creditors want to know more about the business sales performance.

Explanation of Days in Inventory Formula

Dividing the average inventory of $1.19 billion by the total cost of goods sold of $5.42 billion and multiplying by 365, AMDs’ DSI equals 80.23 days. A higher DSI is usually not desirable because it may mean that a company has overstocked inventory, which would lead to higher storage and carrying costs, or slow sales, which would hurt profitability. A high DSI may also indicate that a company’s products are becoming obsolete. For example, a company may be stocking up on inventory to prepare for the holidays, or if it anticipates a shortage in the near future. Using the formula for DSI, we see that it took Procter & Gamble an average of 56.67 days to convert its inventory into sales.

A lower DSI is also preferred because it ensures that the company reduces storage cost. By selling the whole stock within a short period for the case of foodstuff, consumers are guaranteed fresh and healthy.


Hence, a company’s ratios should be compared to its own past financial ratios and to the ratios of companies within its industry. The inventory figure used in the calculation is for the aggregate amount of inventory on hand, and so will mask small clusters of inventory that may be selling quite slowly . The average number of days to sell inventory really varies from business to business depending on the operating model, items being sold, the transit time, etc. Comparing a company’s DSI relative to that of comparable companies can offer useful insights into the company’s inventory management. Irrespective of the single-value figure indicated by DSI, the company management should find a mutually beneficial balance between optimal inventory levels and market demand. One must also note that a high DSI value may be preferred at times depending on the market dynamics.

  • Also if it takes longer to move inventory it will increase costs of storage as well as expose inventory to other risks such as theft and expiry of goods.
  • While you may trust your gut as a business owner, it’s always best to use data to determine how fast your inventory is moving.
  • Days sales in inventory is also one of the measures used to determine the cash conversion cycle, which is the company’s average days to convert resources into cash flows.
  • Another consideration is that some types of business will see seasonal fluctuations in demand for products, meaning that DIO may vary at different times of the year.
  • Second, if their DSI is too high, they will want to make changes to their current strategies because having money tied up in sitting inventory is an inefficient use of funds.
  • Days sales in inventory is calculated by dividing ending inventory by cost of goods sold and multiplying by the number of days in the period, usually 365.
  • Another reason they want a lower DSI is because they don’t want their inventory to be too old and become obsolete or unwanted.

Alternatively, another method to calculate DSI is to divide 365 days by the inventory turnover ratio. Days sales in inventory measure how much time is necessary for a company to turn its inventory into sales. Days Sales in Inventory calculates the number of days it takes a company on average to convert its inventory into revenue. Inventory turnover is a financial ratio that measures a company’s efficiency in managing its stock of goods. By finding out the inventory days, you would be able to calculate both of the above ratios. Days in inventory is an important metric for understanding the health and efficiency of a business’s inventory management process.