What operating asset turnover measures
Operating asset turnover compares revenue with the average operating assets used to support that revenue. A higher turnover means the business is generating more sales from each currency unit tied up in receivables, inventory, equipment, and other operating assets. A lower turnover means more capital is sitting inside the operating base for each unit of revenue generated.
This is useful because profitability alone does not show capital efficiency. Two businesses can report the same revenue and margin but have very different operating-asset footprints. Turnover helps show whether the business is using its working assets and operating base productively.