Guide
How we price every piece
There is no market data behind any price on this site — just supplier cost, a fixed multiplier, and a rule that rounding can only ever move a price up.
The whole formula
Every price on this site is supplier cost multiplied by a single number we set. That's the entire mechanism — there is no second input. We don't look at what anyone else is charging for a comparable piece, because we have no access to that data and, separately, have chosen not to build toward it even where it might be obtainable. The price you see is a function of what we paid and what we've set our margin at, and nothing else.
The floor, and why a price never goes below it
Alongside the multiplier there is a minimum-margin floor: a price is never allowed to settle so low that it stops covering that floor over cost. If the multiplier's result would land under the floor, the floor wins.
Why so many prices end the same way
Where you notice a lot of prices ending in the same two digits, that's a deliberate charm-ending rule, not a coincidence or a typo. It works in one direction only: a computed price is rounded UP to the next amount ending that way, never down. That matters more than it sounds like it should — rounding down to hit a tidy ending could shave a price under the margin floor; rounding up never can.
What can change a price after it's first set
Two things, and only two: the supplier changes what they charge us for that item, or we change the multiplier itself. A price never moves because of a sale event, a countdown, or how long an item has been listed — there is no code path in this system that would let it.