Originally by: Akihito Karasu

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Edited by: Akihito Karasu on 17/10/2007 17:30:38

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Originally by: Akihito Karasu
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Edited by: Akihito Karasu on 16/10/2007 22:56:22
In the MultiComponent Calc, the cost of minerals is the value set in Tools - Preferences - Market Logs. However, the Buy price can only be one of the buy price types. The problem with this is that the Buy Price is actually a price at which someone has offered to buy the mineral, often at a much lower level than the average price at this the mineral is selling. Therefore the cost of production calculated by the MultiComponent Calc is wildly out of synch with any real world cost of production.

A much more helpful value would be the average price at which the mineral is currently selling. Given that this value is not computed, I would suggest the Mean Sell Price. This would give a far more accurate estimate of the Cost of Production and enable us to contine to use the Market Logs.

For example, in Heimatar Isogen prices are:
48.43 - Mean Buy Price, price used by MultiComponent Calc
69.18 - Mean Sell Price
66.00 - Current Average Sell Price

As you can see values computed using the Mean Buy Price will be about 30% lower than the real cost of buying the minerals at the price at which they are actually being bought and sold. Relying on the cost of production calculated by EVE MEEP would result in some horrible surprises.
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I am open to changing this, but let me make sure I have your argument correct. Buy prices are often far lower than the sell price for the market, meaning that if you were to go buy minerals from the market, you wont get them at the mean buy price but instead at the lowest(or mean) sell price. Therefore the calculator should instead use the sell price for minerals. Do you have any math for prices beyond what I use now that might be better?

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I believe you understand my idea correctly. The Market Data/Sellers & Buyers prices that EVE lets you save are not actually a record of market sells and buys, but rather the offers to sell or buy made by players. The Buy prices are often very optimistic offers to relieve players of items at huge discounts on their true market value. The actual record of market activity is under the tab Price History, which reports daily item volume sold as well as high, low and average prices of items sold.

As a manufactor I'm interested in the relationship between cost of production and selling price. The average price for which minerals and components sell are the value that helps me understand if I am selling items (whose minerals I may have mined) at a profit or a loss.

As far as I know, the Price History informatin is not exportable out of EVE. However, the Mean Sell price appears to be quite close to the Average Selling price and could be used quite successfully. A minor improvement on the Mean Sell price would be if it were possible to clip off the highest two or three sell offers to eliminate the occasional 'newbie trap' price where someone offers one unit of morphite for 9,500,000 vs. 9,500. Not sure it this is even possible, but it would clean up the Mean Sell price.

I think the above is clear. Modifying the MultiComponent Calc to better reflect cost of the resources would be very very helpful.

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