Master Inventory

Landed cost is what a unit really costs you once it is in your building and ready to sell — purchase price plus freight, handling, parts and the cost of what could not be sold.

Inventory turn is how many times you sell through your average inventory in a period — COGS divided by average inventory value.

Price the load from the manifest using your own expected sell prices and sell-through rate, add freight and refurbishment, divide by sellable units to get landed cost, and only bid if that leaves your margin with room to be wrong.

Start from landed cost, set a target margin by category and grade, check it against what the item actually sells for locally, and build in an automatic markdown schedule by age.