Inventory

Inventory value at cost

What the stock on your shelf cost you, not what you hope to sell it for.

Formula

Σ units on hand × effective unit cost

Inventory value at cost is units on hand times the unit cost effective today. It is the money currently tied up in stock, which is what a bank or an investor is asking about.

Valuing it at retail price flatters the number and answers a question nobody asked.

Stock with no unit cost should be shown as unknown rather than as zero, otherwise the total quietly shrinks in a way that looks like good news.