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6.2 Operating Efficiency Ratios

3 min readjune 18, 2024

Operating are crucial tools for evaluating a company's financial health. These ratios measure how well a business manages its assets, inventory, and cash flow, providing insights into its operational effectiveness and potential areas for improvement.

From accounts receivable turnover to , these metrics offer a comprehensive view of a company's performance. By analyzing these ratios, investors and managers can make informed decisions about resource allocation, inventory management, and overall business strategy.

Operating Efficiency Ratios

Accounts receivable turnover calculation

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  • measures how efficiently a company collects payments from customers
    • Calculated using the formula: \frac{\text{[Net Credit Sales](https://www.fiveableKeyTerm:Net_Credit_Sales)}}{\text{[Average Accounts Receivable](https://www.fiveableKeyTerm:Average_Accounts_Receivable)}}
      • Net credit sales represent total credit sales minus returns and allowances (discounts, refunds)
      • Average accounts receivable is calculated as Beginning Accounts Receivable+Ending Accounts Receivable2\frac{\text{Beginning Accounts Receivable} + \text{Ending Accounts Receivable}}{2}
    • A higher ratio indicates faster collection of receivables and better (cash flow)
    • A lower ratio suggests inefficiencies in credit and collection policies (lenient credit terms, poor follow-up)
  • (DSO) represents the average number of days it takes to collect payment from customers
    • Calculated using the formula: 365Accounts Receivable Turnover\frac{365}{\text{Accounts Receivable Turnover}}
    • A lower DSO is generally preferred, as it indicates faster collection of receivables (timely payments)
    • Examples of companies with low DSO: Amazon (15 days), Apple (27 days)

Asset and inventory turnover analysis

  • measures how efficiently a company uses its assets to generate sales
    • Calculated using the formula: Net SalesAverage Total Assets\frac{\text{Net Sales}}{\text{Average Total Assets}}
      • Average total assets is calculated as Beginning Total Assets+Ending Total Assets2\frac{\text{Beginning Total Assets} + \text{Ending Total Assets}}{2}
    • A higher ratio indicates better asset utilization and management (productive use of resources)
    • Examples of companies with high total asset turnover: Walmart (2.4), McDonald's (1.8)
  • measures how quickly a company sells its inventory
    • Calculated using the formula: \frac{\text{[Cost of Goods Sold](https://www.fiveableKeyTerm:Cost_of_Goods_Sold)}}{\text{[Average Inventory](https://www.fiveableKeyTerm:Average_Inventory)}}
      • Average inventory is calculated as Beginning Inventory+Ending Inventory2\frac{\text{Beginning Inventory} + \text{Ending Inventory}}{2}
    • A higher ratio suggests efficient inventory management and strong sales (fast-moving products)
    • A lower ratio may indicate overstocking, obsolete inventory, or weak sales (slow-moving products)
    • Examples of companies with high inventory turnover: Costco (12.2), Zara (7.5)

Days' sales in inventory assessment

  • Days' sales () represents the average number of days a company holds its inventory before selling it
    • Calculated using the formula: 365Inventory Turnover\frac{365}{\text{Inventory Turnover}}
    • A lower DSI is generally preferred, as it indicates faster inventory turnover and less cash tied up in inventory (efficient supply chain)
  • Interpreting DSI helps identify potential inefficiencies in the sales process
    • A high DSI may suggest:
      • Slow-moving or obsolete inventory (outdated products)
      • Overproduction or overstocking (excess inventory)
      • Weak sales or marketing efforts (poor demand forecasting)
    • A low DSI may indicate:
      • Efficient inventory management (just-in-time inventory)
      • Strong demand for products (popular items)
      • Risk of stockouts if inventory levels are too low (lost sales)
  • Comparing DSI to industry averages and competitors provides insights into a company's inventory management effectiveness and potential areas for improvement
    • Example: If a company's DSI is significantly higher than its competitors, it may need to reassess its inventory management strategies and sales efforts to reduce holding costs and improve

Operating Cycle and Cash Management

  • The represents the time it takes for a company to convert its investments in inventory and other resources into cash flows from sales
    • It includes the inventory period (time to sell inventory) and the receivables period (time to collect cash)
  • focuses on optimizing current assets and liabilities to ensure sufficient liquidity for operations
  • The measures the time between cash outflows for resources and cash inflows from sales, considering inventory, receivables, and payables
  • ratios help assess a company's ability to manage its resources effectively, impacting overall profitability
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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.


© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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