The Adjusted cost can be retrieved from the market endpoint on ESI.
https://esi.evetech.net/latest/markets/prices/?datasource=tranquility
It’s a figure that’s somewhat manipulated by CCP, to avoid manipulation by players. It kind of tracks the universe average, but not quite. They do not explain where it comes from.
When I’m talking about the adjusted cost, that is the price which is used to calculate the price, which is used to then calculate the manufacturing cost.
So you take the adjusted costs for each of the materials, multiply it by the quantity at ME0, add it up, and that’s the base item price (the EIV in the screenshots above), which is then used in all the cost calculations. (for manufacturing, copying, etc.)
As for the copying bit: you’re not taking into account that you’re doing 10 run copies.