Understanding Inventory Costs

March 21, 2025


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For companies in the manufacturing and distribution industries, inventory plays a pivotal role in working capital, directly impacting cash flow and profitability. Understanding and effectively managing inventory costs is key to evaluating past performance, forecasting future results, and supporting strategic decision-making. 

What Are Inventory Costs?   

Inventory encompasses raw materials, work in progress, and finished goods available for sale. When a product is sold, inventory is reduced, and the expense is recorded as cost of goods sold (COGS).

Key Components of Inventory Costs: 

Materials   

  • Includes the purchase price of raw materials from vendors and freight costs incurred to bring these materials to the warehouse or manufacturing plant.   
  • Freight costs to ship products to customers are excluded from inventory and classified as selling expenses, though they remain crucial when analyzing product profitability.

Production Costs   

  • Covers direct labor associated with manufacturing or packaging goods and overhead expenses.   
  • Overhead can include rent, utilities, and depreciation related to the production facility. 

Abnormal Costs   

  • Certain expenditures are included in COGS but not considered inventory costs to keep abnormal amounts off the balance sheet, as these lack future value.   
  • Examples often include abnormal freight, handling costs, and spoilage not part of regular production or management processes.   

To maximize profitability, businesses should conduct a thorough analysis of product and customer profitability. Here are actionable ways to reduce inventory spend and enhance margins:

How to Analyze Inventory Costs   

Understanding the components is the first step toward making informed decisions to influence these costs. Surprisingly, pricing decisions are often made without fully understanding production costs, which can result in selling at a loss or targeting the wrong products or customers.  

How to Analyze Inventory Levels   

Two essential metrics for evaluating inventory levels are inventory turnover and days of inventory on hand (DOH): 

  • Inventory Turnover Rate = Cost of Goods Sold (COGS) / Average Inventory Value   
  • Days of Inventory on Hand (DOH) = Inventory / Average Daily COGS 

These metrics provide insight into whether you are overstocked or risking stockouts. Optimal levels depend on factors like industry norms, customer behavior, expiration risks, warehousing costs, and competitive pressures. Striking the right balance is crucial, as excessive inventory increases carrying costs, while insufficient inventory can lead to lost sales and diminished customer satisfaction. 

Driving Success Through Strategic Inventory Costs Management  

A comprehensive understanding of inventory costs is essential for manufacturing and distribution businesses. It goes beyond bookkeeping, impacting your ability to make informed decisions that strengthen profitability and operational efficiency.  

Mastering inventory costs is a strategic advantage for businesses looking to stay competitive. Regularly reviewing and optimizing inventory management practices can improve your bottom line and ensure sustainable, long-term success.  

By factoring this into strategic planning and day-to-day operations, companies can pave the way for stronger financial performance and a more resilient future. If you need help analyzing, our experts at Wiss are here to help


Questions?

Reach out to a Wiss team member for more information or assistance.

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