COGS report
Cost of goods sold and gross margin for a period, and how it is calculated.
The COGS report shows cost of goods sold for a period, as the quantity sold multiplied by the product's cost, summed across the period. Only completed sales are counted.
The figure is joined to the product record live, not to a cost captured at the time of sale. Change a product's cost today and last quarter's COGS moves with it. If you need a period figure to stay put, export it.
Periods
Today, this week (the default), this month, or a custom date range. A custom range interprets your dates as local midnight in your company's timezone, so the window is exactly the days you asked for.
Scope
The report can cover a single store or every active store in the company.
A product with no recorded cost contributes zero to COGS, which makes margin look better than it is. If the figures look too good, check that costs are populated — see Cost, margin and valuation.