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Days Inventory Outstanding (DIO): Meaning and Formula

Days inventory outstanding (DIO)  is a measure of the time it takes for inventory to turn into cash. Gaining important knowledge about it will help you and your business recognize the problems the company is facing and give appropriate directions for the company to thrive.

What Does Days Inventory Outstanding Mean? (DIO)

Day Inventory Outstanding (DIO) is a keyword that refers to the average number of days a company holds inventory before selling it. The inventory date calculation shows how quickly a business can generate cash from inventory.

What-Does-Days-Inventory-Outstanding-Mean-(DIO)
What Does Days Inventory Outstanding Mean (DIO)

It is simultaneously a measure of liquidity as well as an indicator of a company’s current financial performance. The date in the inventory is sometimes called the “inventory supply date”, the “inventory date”, or the “inventory period”.

Days of inventory, along with days of outstanding sales and days of outstanding payments (DPO), are components of the Cash Conversion Cycle (CCC) which is a formula that calculates how quickly a company turns an investment in inventory into cash.

DSO + DIO – DPO = Cash conversion cycle

Therefore, CCC can be optimized (reduced) in three ways: by reducing DSO, decreasing DIO, or increasing DPO.

– Read More: Order Management System: Definition, Process And Value
– Read More: Order management system for Ecommerce: Definition, Key Effect, Benefit

The formula for days inventory outstanding

The-formula-for-days-inventory-outstanding
The formula for days inventory outstanding

Days Inventory Outstanding are typically computed as follows:

DIO = average inventory/cost of goods sold multiplied by the number of days

Average inventory Companies can use the average value of inventory for the period or at the end of the reporting period to calculate the average inventory.

Cost of goods sold It is the cost that the business owner must spend to produce the products sold in the period, including labor, materials, and uses.

The number of days The number of days is defined as the number of days in the period, which is 365 for a year or 90 for a quarter.

The number of days inventory is sold will also let board members, management, and investors know that business owners have succeeded with their primary responsibility: turning inventory into cash. This assurance of confidence goes beyond simply improving the amount invested.

Companies with reduced DSI or days of inventory supply are on track to include their inventory capacity. These are ideal businesses that people want to work for, buy or invest in.

Example of outstanding inventory days

For example, if a company averages $30,000 in inventory for a year and its cost of goods sold is $333,000, the DIO would be calculated as follows:

30,000 / 333,000 x 365 = DIO

                                     =(32.88 days)

Inventory turnover percentage

The inventory turnover ratio, which is related to DIO, estimates how many times a firm sells and replaces its inventory in a certain period of time. The following formula may be used to determine inventory turnover:

Inventory-turnover-percentage
Inventory turnover percentage

Inventory turnover is calculated by dividing the cost of products sold by the average inventory.

So, for the corporation in the above example, inventory turnover would be computed as follows:

Inventory turnover = 333,000/30,000

                               = 11,1

DIO may alternatively be computed as follows:

DIO = 1/inventory turnover multiplied by the number of days

Consider the following as an example:

1/11,1 x 365 = DIO

(32.88 days)

– Read More: Work In Process Inventory: Definition, Calculation and Example
– Read More: Excess Inventory: Definition, Disadvantages And How To Reduce
– Read More: Is Inventory An Asset: Definition and Example

Importance of Inventory Days Outstanding

  • DIO is a measure of inventory management efficiency that management uses to gauge the shelf life of a company’s normal inventory – Over how long does it take for inventory to turn into cash /asset
  • DIO displays inventory liquidity. A low DIO indicates that inventory is converted to cash faster, while a high DIO indicates the opposite, weak inventory liquidity.
  • DIOs should never be compared across industries because DIOs are so different. In general, a lower DIO is more appropriate and expected than a high DIO.

What does it imply to have a high or low days inventory outstanding?

The typical DIO varies greatly amongst industry sectors. It may be feasible to derive certain inferences by comparing a company’s DIO to that of other firms in the same industry. What is the difference between a high DIO and a low DIO?

High DIO

A high inventory day ratio is something that no business owner wants. Because that shows the company’s ability to convert inventory into revenue is still slow.

The cause of this could be a lack of proper inventory management, which is not as efficient as it is with other companies in the industry.

If the DIO is high, the company’s revenue is kept in inventory for a longer period of time, leaving the company’s cash unused for more profitable purposes.

Overstocking will also lead to high DIOs, resulting in higher inventory costs than necessary and a significant amount of obsolete goods that may never be sold.

Low DIO

If a company has a low DIO, this represents a quick or steady time to convert inventory to cash.

At the same time, a low DIO ratio also means that the business owner can use working capital for other reasons or to pay off debt, helping the company perform better and have more opportunities for growth.

When a company’s DIO is low, it’s less likely that its stock is wiped out or obsolete. However, a low DIO may indicate that the company will find it difficult to cope if market demand spikes.

Because then, the inventory will run out faster and the business will have no more goods to supply to the market, leading to loss or loss of customers.

Conclusions can also be drawn by looking at how a company’s DIO evolves over time. For example, a decrease in DIO may indicate that the company is selling faster in the past, but a larger DIO indicates that the process has slowed.

How To Increase Days Inventory Outstanding?

A lower DIO is often attempted by businesses instead of a larger DIO. DIO can be reduced by increasing the percentage of inventory that is converted to sales or by decreasing the value of inventory held.

As a result, some techniques companies can use to reduce DIO rates include:

  • Improve forecasting and planning accuracy to address any gaps between projected and actual sales. The more accurately you can predict sales, the less you need to store more inventory than necessary.
  • Increase demand through using more effective marketing tactics or offering special holiday promotions
  • Accelerate the sales process – the faster and more convenient transactions are made for customers to buy and sell, the sooner inventory can be converted to cash.
  • Use approaches, such as express or just-in-time delivery, to optimize inventory. For example, get rid of old or slow-moving goods with discounts or free shipping

However, high DIO is not really such a bad thing. Some businesses may consciously choose to keep a larger amount of inventory on hand, such as if customer demand is expected to increase sharply in the near term.

That will make it difficult for businesses with low DIO levels. Another factor to consider is that some types of businesses may see product demand seasonally change, meaning the DIO may change during the year.

Excel Template for DIO Calculator

To have a complete Excel DIO spreadsheet, you need to define specific categories such as Inventory Forecast, Cost of Goods Sold (COGS), Inventory Turnover, and Days of Inventory (DIO).

Then fill it in columns in Excel and use this inventory formula as mentioned above to calculate the total. You can refer to the Excel sample below:

Excel-Template-for-DIO-Calculator
Excel Template for DIO Calculator

Conclusion

Days inventory outstanding (DIO) is an important parameter that any business if it wants to grow, you should not ignore. So, through the last article, you have got the most detailed information about the definition, the formula, and the importance of the number of days in stock for you to learn.

Ngoc Lee

Writing is an art that speaks from my heart!

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