A clear definition

Inventory turnover

Inventory turnover compares the cost of goods sold during a period with average inventory on a compatible cost basis.

What it means in practice

It indicates how often the inventory value was replaced through sales during that period. A higher figure is not automatically better: insufficient stock can damage service. A low figure can reflect slow movement, seasonal preparation or a deliberate buffer. Examine item level ageing and demand rather than drawing a conclusion from the overall ratio alone. Keep the valuation basis consistent. Fast turnover can support cash efficiency, but very low stock may create missed sales or urgent purchasing costs. Slow turnover can indicate weak demand, excessive buying or a deliberate supply buffer. Examine individual stock groups and their age. The average should guide investigation rather than impose one target across products with very different lead times and customer expectations.

A fictional worked example

Cost of goods sold of ₦12 million and average inventory of ₦3 million gives turnover of four times for the stated period.

A useful question

Which individual items explain the movement in the overall inventory figure?

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