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Rusty Gank
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Posted - 2011.08.21 23:28:00 -
[1]
I have been working on making myself a spreadsheet to view costs of producing different BPO's that I own (or plan to own). Atm, I ONLY have the basic, no-waste formulas. How do I add in BPO waste (assuming it's not perfect ME). Do I use the base number of minerals or the amount of minerals atfer PE5 is trained. I am assuming it's base minerals, but I am really not sure on this. Any help guys?
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Zifrian
Deep Space Innovations
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Posted - 2011.08.22 00:35:00 -
[2]
You would probably get more help if you posted in the EVE Technology Lab forum than here. But this thread might help you out some. This is where I went to figure out how to calculate waste.
http://www.eveonline.com/ingameboard.asp?a=topic&threadID=1220024
Basically you add waste after you calculate the minerals and apply PE there. But there is a twist with how the mats are calculated from reprocessing. That's what the thread was about back when they changed to this new logic.
It can get confusing after a bit but if you decide you don't want to mess with it any more, there are several programs and spreadsheets out there that do this for you already. I wrote one (Here), there is Dedaf's sheet, Akita T has one, and there is EVE Meep. I think there are others as well but those are the ones I know of.
Hope that helps.
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Rusty Gank
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Posted - 2011.08.22 01:00:00 -
[3]
Been messing around with your program. I like it. I think I'll call it quits on my spreadsheet lol
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Tau Cabalander
Retirement Retreat
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Posted - 2011.08.22 19:08:00 -
[4]
Edited by: Tau Cabalander on 22/08/2011 19:13:00
Base waste and material can be looked-up in the database (database values are base values), or they can be discovered by looking at an ME 0 BPO in-game:
base_waste = waste_on_ME_0_BPO base_material = ROUND(material_on_ME_0_BPO / (1 + base_waste))
Total Material = ROUND(base_material * (1.25 + base_waste / (1 + ME_Level) - Production_Efficiency_Skill * 0.05))
Assuming Production Efficiency 5 skill:
Perfect_ME >= FLOOR(2 * base_waste * largest_quantity_base_material) OR Perfect_ME >= FLOOR(2 * waste_on_ME_0_BPO * largest_quantity_material_on_ME_0_BPO / (1 + waste_on_ME_0_BPO)) OR Perfect ME >= largest_quantity_material_on_ME_0_BPO / ((1 + waste_on_ME_0_BPO) / (2 * waste_on_ME_0_BPO ))
I like to use the last one, as the divisor is a non-repeating decimal and easy to remember: * Perfect ME on 10% base waste BPO: divide largest material quantity shown in-game on ME 0 BPO by 5.5 * Perfect ME on 5% base waste BPO: divide largest material quantity shown in-game on ME 0 BPO by 10.5 In both cases the fractional part is dropped by FLOOR() not rounded.
There is no such thing as perfect PE. It uses a similar formula with 25% time waste, but it doesn't round, so the fractions of a second add-up the more runs in the manufacturing job.
On most base 10% waste BPO, I like to research ME to 20 (<0.5% material waste) and PE to 25 (<1% time waste), unless that takes too long to research. Ammo BPO are the only ones I recommend researching to perfect ME and high PE, as many thousands of runs are manufactured, and the research time isn't unreasonable.
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