Texas A&M University (TAMU) IDIS 340 Manufacturer Distributor Relations Exam 1 Practice Test

Inventory turnover is the KPI that measures how often inventory is sold and replaced over a period. It captures the speed at which stock moves through the business, showing how quickly items are bought and replenished. The typical way to think about it is: how many times does the stock on hand cycle through the sales process in a given time frame? A higher turnover means you’re turning through inventory rapidly, which usually signals strong sales and efficient use of stock, while a lower turnover suggests slower movement and higher carrying costs or risk of obsolescence. The standard calculation uses the cost of goods sold divided by the average inventory for the period, yielding a turnover rate in times per period (often per year).

Lead time, by contrast, is the duration between placing an order and receiving it, so it speaks to supplier responsiveness rather than how fast inventory is sold. Order frequency refers to how often you place orders with suppliers, not how quickly you sell what you have. The cost of carrying inventory reflects the expenses of holding stock, not the velocity of stock movement. So inventory turnover uniquely answers the question about how often inventory is sold and replaced within the period.