A percentage is a number or ratio expressed as a fraction of $100$. It is often denoted using the percent sign, "$\%$", or the abbreviation "$\mathrm{pct}$." -Wikipedia. Percentages are used when describing portions or proportional changes.

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How do I show the following through an infographic: Men are 543% more likely to participate than women. [on hold]

Thanks for your help. I am using small stick figures to represent the above statistic.
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13 views

Math Algorithm Help Needed with Aggregated Percentages (Business Metaphor)

I'm trying to figure out a math algorithm, but I'm having a hard time wrapping my head around the best way. Instead of defining a complex industry-specific process, I'll use a crazy metaphor here ...
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10 views

Exchanging numerical data to percentages

I have a large amount of data that are all positive numbers that i am plotting, however, as apposed to using numbers, which lack relative significance, I was looking to find an algorithm that would ...
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2answers
12 views

Need to find percentage of cream to be added in 6% yogurt

How much cream (at 36% milk fat and 64% water) is necessary to yield 500L of yogurt at 6% milk fat? Assuming the only source of milk fat is from the cream being added.
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1answer
38 views

Distribution of staff

The example I have used here is not real but relates to a real problem that is too complex to explain on this site. Within a large shopping facility, we distribute staff across the various areas ...
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2answers
28 views

Percentage of a quantity

Concrete is sometimes made from 1 part cement, 4 parts blue metal and 3 parts sand. Find the percentage of cement used
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26 views

Black or red percentages

Black or Red. With a $\$100.00$ bankroll I want to increase to $\$200.00$. To achieve my goal what type of bet should I make. Would I be best to make only 1 bet ($\$100.00$) or 2 bets ($\$50.00$)each ...
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45 views

Odds on a 50% bet [on hold]

With a \$100.00 bankroll I want to increase to \$200.00. . To achieve my goal what type of bet should I make. Would I be best to make only 1 bet (\$100.00) or 2 bets (\$50.00)each or 4 bets (\$25.00) ...
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1answer
26 views

Reduction in profit…by how much

If an organization sells $n$ tickets then the profit would be 20% more than the total costs of production. Lets say that it sold all the tickets except 5% of them. What is the reduction in profit? ...
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1answer
19 views

Estimate the discounts…

Here is a problem on discount estimation,, If marked price of an article is $\frac{8}{5}$ times cost price and its selling price is at least $\frac{4}{5}$th the cost price then discount percentage ...
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1answer
33 views

Sold two articles gaining $20$% on one and losing $20$% on the other. What is the total gain/loss?

Here is a problem,, Kethy sold two articles on one she gains $20$% and on the other $20$% loss. Find how much she gains or she lose if cost price of one is $50$% the other. Multiple choices are ...
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22 views

Merchant selling price for 20% Gain

Here is the problem, on selling an article for $76$ dollars merchant loses $4$ dollars, to gain $20$% profit he has to sell it for X dollars.The selling price of the article to gain $20$% is...? ...
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1answer
37 views

Selling Corrupt quality of honey with allegation…

I have a problem that uses Allegation concept, I tried it I would like to know If I am Correct..? A Honey seller gets pure honey($1$ Litre ) for $100$ and a sweet oil for $20$ he shall mix honey ...
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1answer
19 views

Selling apples with out cost price at loss

A vendor loses 4 apple price on selling 36 apples. What is his loss percentage? I assume answer as 11.11% but answer was 10%. Am I thinking in reverse direction?
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21 views

Process/Funnel attribution

I have a process/funnel where a group of people progress through 3 steps to reach the end goal. Some people drop off mid way. In the below example the YoY growth in success is 50bps. I would like to ...
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1answer
15 views

Calculation of approval rates

Total requests=100 Requests Approved=25 Requests Pending=65 Requests Rejected=5 So how to calculate the percentage of approval?? Can someone help please..
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1answer
18 views

What is the correct percent difference formula?

While googling for percent difference formulas, I got two different formulas: (difference/old-value)$\times 100$. (difference/average)$\times 100$. ...
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1answer
37 views

Name for percentage as a decimal between 0 and 1 inclusive

Problem I'm unsure if I should be asking this here or on English Language, so sorry if it's not a good fit for a site. I'm looking for a term that describes a number between 0 and 1, inclusive, that ...
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1answer
21 views

How to calculate individual chance over a total 10% of 60 iterations?

I'm developing a game that needs to calculate a 10% chance over a second of shooting against the player. The problem is, this calc is run every frame at a 60 frame rate. So I need the individual ...
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1answer
21 views

Unable to determine 'original amount' in simple percentage problems

I'm solving a problem in the Manhattan GRE 5 pound book. When Mark fills his car with regular gasoline, he gets 20 miles/gallon. When he fills his car with premium gasoline, he gets 25 ...
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2answers
31 views

What kind of mathematical operation is used to repeatedly increase a number by a certain percentage?

I am sure that this is an easy question to answer for most of you. I need to take a number, let's say $10$, and then increase it by a percentage, let's do $25\%$. $10 \times 1.25 = 12.5$ Easy ...
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2answers
40 views

Why there is no pattern between a fractional growth rate and a unit-multiplied growth rate?

For example, when increasing $20$ by $75\%$, we add $75\%$ of $20$, to $20$. But, why when we increase $20$ by $200\%$, we don't add $200\%$ of $20$, to $20$? (Or, do we?) Due to this inconsistency, ...
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3answers
30 views

Percentages of $\$100,000$

$\$6,200$ is $6.2\%$ of $\$100,000$. That leaves $\$93,800$ as $93.8\%$ of that $\$100,000$. But when I take $\$93,800$. and multiply it by $6.2\%$, I get $\$99,615.60$ instead of $\$100,000$. Why is ...
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1answer
31 views

Projection equation

I'm a programmer, not a math expert or statistician by any means, but my organization wants a page in our admin console that displays a projection of how many registrations we can expect to see based ...
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1answer
38 views

Rounding Percentages

Okay so I have been having a problem and would really appreciate any help. I have posted a table below with the aim of making this as simple/precise as possible. ...
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2answers
137 views

Percent of a percent

I'm trying to calculate the correct percentages of both red and blue paint from a starting mix... It's difficult for me to explain, but the example should be easy enough... Let's say I have the ...
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1answer
46 views

Congruence and percentage

Suppose I have three statements of congruence: x = a mod n, y = b mod m, z = c mod p; Furthermore, x is a given percent of x + y + z, as is y and z. Does this uniquely determine x, y, z? Or does it ...
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34 views

A Question Of Percentages

If I have 4 chances and each chance has a 10% success rate, what is the overall percent chance that 1 chance will succeed? For example: A guy plays a roleplaying game. He has 4 peices of equipment ...
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3answers
29 views

Basic accounting percentage question

I'm looking at a question which I find a little bit confusing. The question is asking me to find the value of the sales tax (17.5%) from a gross figure (£7402). I know that I can work out the correct ...
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2answers
105 views

Accuracy of football prediction

Say you predicted that Brazil would have beaten Germany 2-1, by how large a percentage were you wrong? As Brazil scored 1 out of 2 goals, you could say that part of your prediction was 50% right. ...
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1answer
20 views

Calculating percentage of better hand.

For example, I have two cards and there are two other players. They have both 20% chance of having a better hand then me, how much chance is it in total that either one of them has a better hand then ...
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1answer
28 views

how to create a formula to set a priority level that decreases if the number increases

I'm a php programmer and I'm in the middle of a a new project that creates websites' sitemap to create sitemap we set a propriety level for every link on the site the priority decreases if the link ...
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1answer
49 views

Mathematical notation to represent x% within x%

What is the proper way to represent mathematically the expresion $x\%$ within $x\%$? For example, $90\%$ of the bottles are $95\%$ full.
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30 views

simple word problem - percentage of salary

"An employee receives a bonus at the end of each quarter based on her salary for the year. If she earns $1,800$ per month, and her bonus is $3.5$% of her yearly salary, her bonus for the previous ...
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1answer
17 views

Commpossed percentage over same base

Maybe this sounds a Little trivial. I have a value and Over this value apply percentage (a), then over this result apply other percentage (b) Could say : Value = 145760 a= 8% b= 40% My actual ...
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1answer
17 views

How to determine who improved the most considering diminishing returns

My friends and I are competing in a fitness challenge against each other. We will determine the winner based on who has the greatest percentage improvement after three months. Here is the problem: if ...
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0answers
16 views

Recalculating an interest amount with a lower rate

I have a number of accounts which were over charged interest at a rate of $22.5\%$ (most accounts, some are $21.5\%,19.5\%$). All these accounts needed to be charged $18.5\%$. I have the total ...
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3answers
22 views

Deduct percentage from x to reach desired value

Let's suppose I need \$200,000 to pay a debt, no more, no less. So I placed a property to sell with an agent, but I know the agent will deduct 6% for himself, which will amount to \$12,000. Since ...
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1answer
39 views

Another mid level math question about %.

$A = 1000, B = 0.6$ $Y \times B = A ; (? \times 0.6 = 1000)$ Need to find $Y$ every time I change $A$ or $B$. How do i ask a calculator to do that (: ? (I managed to reverse engineer a way ...
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2answers
33 views

mid level math question about %.

$A = 1000, B = 1.2$ $A\times B = C (1000\times 1.2 = 1200)$ $X\times C = A (? \times 1200 = 1000)$ Need to find $X$ every time I change $A$ or $B$. Probably there is formula that is able to solve ...
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43 views

Multiply by a percentage

Ok, so this is pretty trivial but my head is battered so need some help! What calculation is the equivalent of $30,000 \times 0.073\%$? I am a PHP programmer and cannot simply do $ 30000\times ...
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2answers
28 views

Fraction With Scientific Notation As A Percentage

I have this fraction $\frac{3.09\times 10^{-9}}{0.02\times 10^{-9}}$ and I need to convert it to a percentage. What I do know is that the $10^{-9}$ cancels out and we are left with $\frac{309}2$, but ...
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1answer
26 views

Chances of winning if only a certain amount of people can participate

So we got 2 million (2_000_000) cornflakes boxes. Hidden in 6 of those cornflakes boxes is a gold nugget. Due to a wrong printing, 500_000 cornflakes boxes don't get into the market. So there are ...
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3answers
59 views

If $90$ points equal $40%$, what'd be $85$ and so on?

A full mark for a test is $90$ points (instead of the usual $100$), and the test is $40%$ of a subject. If students get $90$ points, obviously they get full $40%$ for the test. Then, how do we work ...
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2answers
21 views

Calculate a number based on percentage

Current i have a certain percentage. (0% - 100%) i need to convert this percentage to a number in a range. (-45 degrees - 45 degrees) how would i do this? so: 0% = -45 degrees 50% = 0 degrees 100% ...
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1answer
31 views

A simple Question. How much “faster” is A than B as a percentage figure?

A simple question If two people complete the same task, and Person A completes the task in 10 minutes, Person B in 8 minutes, what figures can/should be quoted in terms of how much quicker A is than ...
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18 views

How can I get a function to calculate non-cumulative increment?

If you pay $0,045 monthly, and you need to pay $0,16 monthly, how do you get a function to calculate, in terms of percentage ...
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1answer
26 views

What is the simplest formula for taking more and more percentages from a number?

For example, say I have $500 and I need to take 10% of it. Then later I need to take 5% of the next number: 500 - (500 * .10) = 450 450 - (450 * .5) = 427.5 ...
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1answer
43 views

Percentage in time question

I have a question in a test paper which I have answered but I am confused about the answer. Edward takes 12 hours to paint a fence. Danny paints 60% faster than Edward. How long does Danny take to ...
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1answer
16 views

Statistic about Actual vs. Projected

I am trying to show how much a certain thing has exceeded or fallen below its expectation. How do I calculate this? I forgot if this statistic is called Percent Difference or something else, I ...