Guide hub
COGS and unit costs
Understand COGS, unit costs, and how supplier invoices drive product-level cost history for better purchasing and margin decisions.
COGS and unit cost are where procurement meets the plate or shelf. If you only see totals on a statement, you cannot tell whether a bad week was volume, mix, or a supplier quietly raising the pack price.
Invoice line items rebuild the story: what you paid per unit, how that compares to last month, and which SKUs are dragging margin. Pair that history with simple calculators so finance and ops share the same numbers in vendor reviews.
This hub walks through calculating and improving COGS, using inventory discipline for cost control, and free tools you can run before you automate the full invoice pipeline.
Reading path
Work through these in order — start with the foundation, then deepen with tools and adjacent workflows.