Printing cost
Costs & royalties
Also called: print cost, manufacturing cost
What Amazon charges to manufacture one copy, deducted from every sale before your royalty. It is a fixed amount plus a per-page amount, set by marketplace, ink type, and trim category.
Printing cost is the single largest deduction on a print book, and unlike your list price it is not something you control — it falls out of decisions you already made about size, length, and ink.
The structure is a fixed charge plus a per-page charge, banded by page count. Below a threshold the fixed charge applies alone; above it, each page adds a small amount. That is why very short books have a surprisingly high cost per page and long books have a surprisingly high cost per copy.
Three things move the number: the marketplace (each currency zone has its own table), the ink and paper combination (colour costs far more per page than black), and whether your trim is standard or large. The last one is the easiest to get wrong, because two trims that look identical can sit on opposite sides of the boundary.
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