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Inventory metrics explained

Inventory metrics dictionary

Mihai Iova avatar
Written by Mihai Iova
Updated over a week ago

Start qty


No. of units in stock of a certain product or group of products at the start of the selected time frame.

End qty


No. of units in stock of a certain product or group of products at the end of the selected time frame.

IN quantity

Number of units added to the inventory during the selected time frame.
No. of units that were added to the inventory.

OUT quantity

Number of units subtracted from the inventory (during the selected time frame).
No. of units that were substracted from the inventory.

Start Amount (COGS)

Amount of inventory value (calculated using cost of goods sold) at the start of the selected time frame.
COGS of units in stock of a certain product or group of products at the start of the selected time frame.

End Amount (COGS)

Inventory Value, in monetary units (using cost of goods sold), at the end of the time frame.
COGS of units in stock of a certain product or group of products at the end of the selected time frame.

In Amount (COGS)

Inventory Value, in monetary units (using cost of goods sold), added/bought in the selected time frame.
COGS of units that were added to the inventory.

Out Amount (COGS)

Amount of inventory value (using cost of goods sold) subtracted from inventory in the selected time frame.
COGS of units that were substracted from the inventory.

Average inventory (by qty)

The mean value of inventory over the defined time frame.
Average inventory using quantity

Inventory Turnover (by qty)


Inventory turnover using quantity

Inventory Age (by qty)

Amount of days it takes for the product’s inventory to be sold.
Inventory age using quantity

Average Inventory (by COGS amount)

Average amount of inventory value, using the cost of goods sold.
Average inventory using amount

Inventory Turnover (by COGS amount)

The amount of times the product’s inventory was replaced in the specified time frame.
Inventory turnover using cost of goods

Inventory Age (by COGS amount)

Amount of days it takes for the product’s inventory to be sold.
Inventory Age using amount

Percent of SKU's with cost from inventory


Percent of Variants with inventory cost associated.

Sell through rate

Percentage of products sold, out of the starting inventory, in the selected time frame.
Percent of quantity that left the warehouse from the inventory quantity at the beginning of the date range. Formula: OUT quantity / Start quantity * 100

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