What Is Days Sales of Inventory?
Learn how days ventas of inventario (DSI) measures the average number of days a company takes to sell its entire inventario, revealing operational eficiencia.
Key Takeaways
- DSI measures the average number of days it takes a business to convert its inventario into ventas.
- Lower DSI indicates faster inventario movement and more efficient working capital management.
- DSI is a key component of the cash conversion cycle, linking inventario to overall cash flow.
What DSI Measures
Days ventas of inventario calculates the average number of days a company holds inventario before selling it. It translates the inventario turnover ratio into a time-based métrica that is intuitive and easy to communicate. A DSI of 30 means the company, on average, sells its entire inventario every 30 days. This métrica helps managers, investors, and lenders assess how efficiently a business manages its inventario and how quickly it can convert inventario into cash.
How to Calculate DSI
The formula is: DSI = (Average Inventory / Cost of Goods Sold) x 365 days. Alternatively, DSI = 365 / Inventory Turnover Ratio. For example, if average inventario is $200,000 and annual COGS is $1,200,000, DSI equals approximately 61 days. This means the business takes about two months on average to sell through its inventario. The calculation can be adapted for quarterly or monthly periods by adjusting the number of days accordingly.
Why DSI Matters for Cash Flow
DSI directly impacts the cash conversion cycle, the time between paying for inventario and collecting cash from clientes. A shorter DSI means cash is tied up in inventario for fewer days, improving liquidity. For businesses in African markets where access to working capital finance can be limited and expensive, reducing DSI even by a few days can significantly improve cash flow and reduce the need for costoly short-term borrowing.
Benchmarking and Improvement
DSI varies widely by industry and should be compared against sector peers. Perishable goods industries meta single-digit DSI, while luxury goods or heavy equipment may have DSI exceeding 100 days. Improving DSI involves better demand predicción, tighter purchasing discipline, faster inbound logística, and proactive management of slow-moving inventario. Tracking DSI trends over time reveals whether inventario management is improving or deteriorating.