QuickBooks provides several statistical measures of the value of your inventory.
To break down the value of your inventory:
Choose Reports > Inventory.
Choose one of the following:
Valuation summary: To see, for each inventory item, the quantity on hand, average cost, asset value, % of total asset value, retail value, and % of total retail value.
Valuation detail: To see, for each inventory item, the opening balance, ending balance, and every transaction (purchase or sale) that has affected the inventory value during the period of time covered by the report.