Science & Industry

Hi!

Yes yes, I am a newb and all that, please be gentle.

Now onto my question ( I have searched far and wide and all help I have found is either out-dated, incorrect, or I'm too stupid to understand it):

My concerns are regarding the calculation of materials/minerals needed during manufacturing. Going by the guides you calculate a base number of the mineral needed and then calculate the waste factor according to your BPO research level.

AFAIK the mineral need = [mineral base] + [mineral base]*[base waste/(1+ME)]

So to take an example. I need 24889 of a mineral. Now from this I calculated a base value of 22626 (=> 22626*1.1=24889).
Given an ME of 5 I would then need 23645 of this mineral according to game and online tools Ive seen. When I do the above calculation I get 23003. For the life of me I can't understand where I go wrong.

I know there are a multitude of tools/spreadsheets. But being the way I am I need to understand... Help?

Hi there,

CCP has changed a lot of industry related stuff in the Crius release, among those also the material efficiency mechanic. Prior to Crius, some blueprints had additional materials unaffected by ME. This has been removed, as well as waste (you no longer "waste" materials when building from an unresearched blueprint, you just need less the better the material efficiency is), and the new formula to calculate the required materials of a blueprint is:

required = baseMaterial * (1 - materialEfficiency / 100)

You can therefore reduce the amount of a specific material by 10% before additional facility bonuses. Unless you need exactly 1 item per run, of course.
This change, together with the change to time efficiency research, has made calculators for "perfect" ME/TE more or less obsolete, since the new perfect ME is always 10, and perfect TE is always 20.

Yes

CCP have simplified the math significantly.

All reductions multiply, so if you have a 2% reduction from a facility, starting with 100 as a meterial,you'd have 100*0.95*0.98 which rounds to 94. (do 10 runs in a job, and you'll save 9.)

https://forums.eveonline.com/default.aspx?g=posts&t=362493 may be of interest

When I first started looking at the math for manufacturing I would do subtractions instead of multiply the source number.

So I'm sitting in Jita asking myself how much Megacyte I need to make 100 plates - easy example.

My BPO is 10% and rather than multiply .9 on a 0 ME BPO I cut 10% off but that's not how it works. Later and at larger amounts, that little bit can make a difference.

11 becomes 10? No, 11 becomes 9.9 because 11x .9 is 9.9

Suppose I am making 100 and base ME 0 amount is 11x100
ME10 is really ME x .9 so 1100 x .9 I need 990, not 1000.

I think this is where a lot of people are finding they need less than they think.