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okay let’s say you need only tritanium, and the best for that is compressed dense veldspar.
We just consider this compressed ore now, refining or whatever is of no concern. It’s just usually better to move compressed ore and we assume so.
Let’s say that a 1 000 000 m³ freighter trip is worth 100M (for the distance), ie 100 isk/m³. a 0.15 m³ dense veldpar then costs 15 isk to move to or from jita.
The price at BO is 1760 isk,price at SO is 2095. Either you have the item, or you need to buy it.
- If you have the item, you could sell it directly at jita for 1760 isk. You pay 2.25% in tax so 44 isk. In the end, selling your compressed would have netted you 1760-15-44 = 1701 isks.
- Iif you need to purchase the item : let’s say you buy it directly , it’s just SO price + volumic price so 2095+15 = 3010 isks.
The fact or not having it increase price by 76.9%
How you got it is not a concern. You are subject to the fallacy of sunken costs. If they mined it, you have to assume it was worth their time doing so, eg because they were okay with getting 1701 isk per item.
As you can see, having produced the item yourself can reduce the price of the item a lot.