Help me dilute a solution to a desired level

I have a solution of (14%) sandalwood essential oil in jojoba oil. I also have pure jojoba oil. I would would like to end up with a 15 ml solution of 2% sandalwood in jojoba oil. How do I get there?
posted by entropicamericana on Oct 31, 2015 - 8 answers

Percentage Question

Help me understand percentages.
posted by dbirchum on Dec 31, 2013 - 17 answers

Help me solve this maths problem

The average length of unemployment in the UK in 2005 was 170 days. For people aged 45 and over, the figure was 220 days. What would the figure be for these aged under 45?
posted by iamsuper on Sep 14, 2013 - 8 answers

Dealing with percentages: noob question

I've recently decided to transition to a new career path, accounting. Most firms round here do an online numeracy test as part of the application process. There is a type of % change question that often comes up and I can't find a proper answer about how to calculate it. There are two formulae suggested by different websites, but they give different answers. Which is right? (details inside)
posted by NoiselessPenguin on May 28, 2013 - 10 answers

True Author Revenue Share on Amazon

I recently read a blog post / article written by a best-selling Amazon author who noted that after all of Amazon's small print, he was only getting about 20% revenue share on the sale of his work (comparable to the traditional publishing industry) rather than Amazon's frequently lauded 70%. Can anyone find the post / article in question?
posted by whimsicalnymph on Apr 8, 2013 - 6 answers

Getting 70% Isopropyl Alcohol down to exactly 50% based on a 32oz bottle

For one of the steps to a science project, I need to take a 32oz bottle of drugstore 70% isopropyl alcohol and reduces down to 50% by adding distilled water. Can anyone tell me how many ounces of water I would need to add to the 32oz bottle of isopropyl to make it 50% alcohol? The mathematical formula would be helpful if it's easy enough to calculate in the future. Thank you.
posted by orehek on Feb 6, 2013 - 19 answers

Weighted mean

Mathematics-filter: If there are seven funds with various charges, how can I work out the allocation to these funds of a fixed amount so that the weighted mean charge is below a certain level and the allocations are of similar sizes?
posted by djgh on Dec 31, 2012 - 13 answers

Percentage Calculation

I know the price of something now and what the price was 2 years ago - how do I calculate that as an annual percentage increase?
posted by jontyjago on Oct 19, 2012 - 12 answers

Pie chart in Word with dollar amounts?

How to make a pie chart in Word with dollar amounts, not percentages?
posted by zardoz on Aug 30, 2012 - 5 answers

Math Geeks!! Assistance needed!!

How should a surcharge be calculated?
posted by elf27 on Jun 7, 2012 - 11 answers

Help the stats-challenged understand an odds ratio

Statistics make my head go wobbly. But I need to understand something about odds ratios. Actually, I don't need to understand -- I just need to make sure I'm not screwing up this particular figure. Please help!
posted by neroli on Apr 19, 2012 - 15 answers

Where can I find a source giving anticipated increases for business travel for 2013 for budgeting purposes?
posted by cainiarb on Feb 9, 2012 - 2 answers

Need help with SQL statement

I need to create a query in Access that shows the percentage of a total. I can't grasp the SQL statement I need.
posted by desjardins on Jan 26, 2011 - 7 answers

KILLS ALL THE GERMS! Except that one.

Why do commercials usually show the product killing MOST, but not ALL, of the things it's supposed to kill?
posted by Pastor of Muppets on Nov 23, 2010 - 18 answers

mySQL query question about calculating percentages in a table.
posted by omnipotentq on Sep 5, 2010 - 3 answers

Fitness level for body fat scale

My body fat measuring scale requires me to give it parameters: Age, Height, Gender, and Fitness Level (1, 2, or 3). What should I enter for fitness level? The instructions just say something like "enter your fitness level on a scale from 1 to 3". Does anyone have a similar product and have a rule of thumb for this?
posted by jclovebrew on Oct 8, 2009 - 5 answers

In what percentage of large passenger jet crashes are there any survivors? And on those occasions, what is the average survival rate?

In what percentage of large passenger jet crashes are there any survivors? And on those occasions, what is the average survival rate?
posted by Joe Beese on Apr 5, 2009 - 9 answers

Parts Per Hundred or Parts Per One?

What is the TERM for the three-decimal place, fraction-of-one "percentage" format used in baseball statistics?
posted by rokusan on Nov 20, 2007 - 15 answers

What percentage of biologist accept evolution?

What percentage of biologists accept [unguided, non-theistic] evolution? Citation needed.
posted by Pater Aletheias on Dec 12, 2006 - 29 answers

What percentage of film school graduates move into the industry?

What percentage of film school graduates move into the film industry? What about UCLA film school graduates?
posted by FearAndLoathingInLJ on Nov 30, 2006 - 6 answers

What percentage for the salesperson?

Does anyone happen to know what an "industry standard" percentage might be for an independent salesperson in the media industry (commercials/animation/print/etc.)?
posted by numlok on Feb 18, 2006 - 0 answers

How much should I charge?

A former colleague of mine has a consultancy business and wants to subcontract some work to me. I would be introduced to the client as the person who will be handling all aspects of the project and will also be the main point of contact for that client. I know how much this client will be billed on a monthly basis and my question is what percentage of that amount should I realistically expect to receive for doing all the work? Is there a standard subcontractor percentage that I can quote?
posted by gfrobe on Oct 17, 2005 - 4 answers

How much do caddies for professional golfers make?

How much do caddies for professional golfers make? Do they make a percentage of the purse?
posted by o2b on Jun 20, 2004 - 3 answers

I need browser stats that include both the OS and browsers as a percent.

I have searched and searched in vain: Is there anywhere I can get browser stats that tell me the OS and the browsers as a percentage (instead of one or the other)? Alternatively, is there anywhere I can find browsers -- including sub-releases (5.0, 5.1, etc) -- as a percentage?
posted by o2b on May 26, 2004 - 4 answers

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