Price From a Range, Not One Lucky Comparable

If the exit price is wrong, every profit calculation built on top of it is wrong too.

Pricing is not finding one listing and copying the number. A market is a range created by condition, timing, geography, specifications, urgency, and buyer confidence. Start with the exact product. Match model, generation, storage, memory, size, connectivity, and meaningful accessories as closely as possible. Then compare condition. A pristine unit with warranty and box is not directly comparable to a scratched unit with weak battery and no charger. Use several pieces of evidence. Active listings tell you what sellers hope to receive. Completed sales, repeated local clearing prices, fast-moving listings, and consistent buyer offers tell you more about what the market will actually absorb. Remove outliers. One unusually high sale does not mean your unit is worth that amount. One distress sale does not mean the market collapsed either. Look for a cluster. Then set three numbers. List price is the public asking price and may include reasonable room to negotiate. Target price is what you realistically expect to receive. Floor price is the lowest number that still makes sense based on your cost, age, and alternatives. The floor is not permanent. If the market falls, your old floor may become imaginary. The market does not care what you paid. Recalculate when new models launch, retailers discount, or your item becomes stale. Thin markets require bigger uncertainty buffers. If you cannot find close comparables, reduce your maximum buy price rather than pretending your estimate is precise.

You can explain why your target price is supported by a cluster rather than one example.