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.

learn more… | top users | synonyms

0
votes
1answer
10 views

Working Out Total Sales Using Comission Paid

If a sales agent earns 70% of the sale as comission. And his comission comes to 1400. What was the total value of sales? I know the answer is 2000 (70% of 2000 is 1400) but assuming you don't have ...
-1
votes
1answer
19 views

Calculate percentage change on top of existing percentage. [on hold]

What's the formula for determining a new percentage discount, if I already have 58.8% discount, but vendor wants a 5.9% increase?
0
votes
2answers
35 views

Help with a progress bar algorithm for a website

I have a progress bar in a website that needs to be filled based on the number $50$. So at $50$ it will be $100\%$ full. The problem is that it starts at about $20\%$ then follows this pattern : ...
-2
votes
1answer
15 views

percentages problems [on hold]

a small village had population of 1500 people.25% of the population were girls and 30% were boys .what pecentage of the population were children ?
3
votes
1answer
63 views

Chance of Drawing All of a Subset

I have a simple question but I can't seem to find the answer anywhere. Say that I have a set $\mathbb Z$ and a subset of that $\mathbb X$. I want to draw elements from $\mathbb Z$ until there is at ...
0
votes
1answer
9 views

Calculating the average of percentages from fields which have a “weight” multiplier applied.

This is for some software I'm writing. I have a number of fields, all of which have a score input which allows a percentage of 0-100. Each field has a "weight" property, which determines its ...
0
votes
2answers
24 views

Incomplete Question? - Ratio

I have encountered the following question in the famous "5LB book of GRE" book If the zoo currently has 80 total birds, what is the samllest number of birds that could be added such that atleast 20% ...
8
votes
6answers
170 views

What does $200\%$ faster mean? (How can something be more than $100\%$ faster?)

I'm a simple man living my every day life and have not much understanding of math or science. Today I read an article where someone claimed they can charge a battery $200\%$ faster. This got me ...
0
votes
0answers
7 views

Misreported profit percentage

By mistake, the profit from Ghana was under reported by 50/3% while profits from all other countries were exactly as reported. If this mistake is corrected, then the actual percentage share of ...
0
votes
1answer
10 views

Calculating better value products.

The special promotion tins of 300g cost 0.80$. The soup can also be bought in larger tin of 500g that cost 1.12$. Is it better value to buy the 500g tin or the special promotion tin? Show your ...
0
votes
2answers
49 views

If $20\%$ of $45\%$ of a positive number is equal to $x$ percent of $0.3$ percent of the same number what is the value of $x$?

I have tried setting up an equation and cross multiplying but it is not one of the answer choices.
0
votes
0answers
8 views

Plastics Manufacturer - Compound Formula

We have 5 ingredients for one of our formulas but only 4 hoppers to hold the ingredients. One of our formulas is a combination of 2 products. 1% of product A and .8% of product B. C, D, E make up the ...
1
vote
1answer
35 views

How to distribute money between people

I was thinking of the following problem: Suppose I have an agency that offers workshops to companies. There are four different "type/rank" of professionals in my agency that could give these ...
2
votes
1answer
23 views

Percentage Got Me Puzzled!

It may seem pretty naive and stupid but this problem got me thinking for a very long time. Assume I have three subject marks: 70 (first), 80 (second), and (76, 67, 90) for the third subject. ...
0
votes
0answers
20 views

Percent question

in a paper I have read that Croatian pupils in the secondary school learns on average two languages (on "normal" gymnasians (=~ high school) 2, in science-oriented 1 and in linguistic schools, 3). ...
0
votes
0answers
17 views

How to calculate chained percentages?

I'm wondering how to calculate the total possibility of something happening when this something is composed by more than one possibility. For example: I have $50$% chance to win a prize and I try it ...
-2
votes
0answers
23 views

Calculating percentages of margins

If a company has three tiers of pricing for its product and its overall margin is $20\%$, is it possible to calculate the percentage margin of each tier from following information? Tier 1 = base ...
0
votes
0answers
22 views

Basic Percentage Calculation

I'm working on a project and need the following help, although that this may be basic to some people, I am struggling to work out this calculation. Let's say there are currently 3 tasks, and the a ...
1
vote
1answer
23 views

Error in ratio approximation

Not being very familiar with statistics I have been trying to figure this out for some time: Suppose that I am trying to determine the relative amounts of several animal species. To do this, I find ...
2
votes
1answer
35 views

Calculating the percentage increase

A doctor was seeing 3 patients a day. He then started to see 18 people a day. What is the percentage increase? And how do I work this out?
0
votes
0answers
16 views

How can I calculate percent error with a denominator of 0? [duplicate]

I am using the MAPE formula, ABS(actual-forecast)/actual *100, but this raises problems when the actual values are zero. Is it possible to add 1 to the denominator and calculate this way? Would I get ...
-4
votes
1answer
25 views

Finding Chronological Percentages? (Not sure how to title this) [closed]

How do I find what value for $x$ would make this statement true? Given $y$ and $z$: $$ a = y\\ b = x\%\text{ of }a\\ c = x\%\text{ of }b\\ d = x\%\text{ of c AND }z\%\text{ of }a\\ $$ Not too sure ...
0
votes
0answers
17 views

Exchange Rate scenario. Which is the better option?

You are travelling overseas. If you use your ATM or Credit Card, you will be assessed a 3% surcharge on all transactions. So, you decide to withdraw Euros at your local bank branch to see if you ...
0
votes
2answers
34 views

why dividing a number by 1.25 gives back 20 percent less of original?

So i had to takeout the discount from price. price = 10 discount = 20% my default method has been: price - price*discount ...
0
votes
1answer
23 views

Combining percentages differences

I would like to know the difference between two approaches of combining percentages. I found an online example that match my situation; the example have been found in The University of Georgia page. ...
0
votes
0answers
33 views
0
votes
3answers
53 views

If a given # is $70$% of $X$. How do you determine what $X$ is? [duplicate]

Given I have the number $50,000$ which is $70$% of $X$. How do I calculate what $X$ is without guessing. Thanks
0
votes
1answer
17 views

How do I determine the remaining ratio in this equation?

I'm developing an experience system for a game, where the experience is gained per hit. Anyways, I need to calculate how much EXP a user should get each time they hit a monster. So for example if a ...
0
votes
1answer
25 views

What is David's Salary per month?

John and David's salary adds upto 10,000 $ per month. They spend the same amount monthly and then it is found that ratio of their savings in 6:!. Which of the following is John's salary 6000 , 5000 , ...
0
votes
1answer
15 views

To find days in which order will be completed

A company asks for production of $x$ number of goods. The company produces $y$ number of goods, daily out of which z% are unfit for sale. To find in how many days will the order will be completed ? ...
0
votes
2answers
27 views

Difference between the two ways of finding average winning rate over a period of time

Ok I might be asking something stupid, please bear with me, math is not my strong suit. This has to be a duplicate but I dont know how to search them. I dont even know how to word the title, kindly ...
0
votes
2answers
29 views

Finding how much percent passed in both Maths and English

In an examination, 35% of the candidates failed in Mathematics and 25% in English. If 10% failed in both Math and English. Then how many percent passed in both the subjects ? ATTEMPT Let x be total ...
1
vote
1answer
14 views

Finding quantity of mixture

In a mixture of milk and water, there is only $26$% water. After replacing the mixture with $7$ litres of pure milk, the percentage of milk in the mixture become $76$%. The quantity of mixture is ...
2
votes
1answer
20 views

Finding original price of Tea per kg

A reduction of $ 2 per kg enables a man to purchase 2 kg more tea for $8. Find original price of tea per kg Attempt Let price be $x per kg of tea .So let man buys 10 kg of tea .So total cost is ...
1
vote
3answers
33 views

How much quantity of water should be added?

What quantity of water should be added to $16$ litres of $25%$ acidic solution to reduce it to $20%$ acidic solution ? Attempt. We have $16$ litres of solution, it has $4$ litres of acid and $12$ ...
1
vote
3answers
36 views

By how much percent sugar consumption should be reduced

If the price of sugar is increased by $7%$, then by how much per cent should a housewife reduce the consumption of sugar, to have no excess expenditure ATTEMPT Let family consume $100$ units of ...
0
votes
2answers
25 views

Percentage difference between loaded miles and empty miles

I dispatch for a trucking company. I'm trying to find a formula to work out the percentage difference between loaded miles and empty miles. For example: One driver drives 200 miles. 150 loaded and 50 ...
0
votes
1answer
17 views

How do I calculate the amount of 3 Fluids, where 2 are a percentage of the first?

I have 3 Fluids: Base Flavor1 Flavor2 The target is to have 50 ml of overall produce, where 10% are Flavor1 and 5% are Flavor2. If I just calculate it off the 50 ml, I end up with 57.5 ml, which ...
1
vote
1answer
17 views

Keep video for certain time frames based upon percentages? (85/13/2 breakdown)

I'm trying to build an equation for an Excel spreadsheet that is used to calculate storage requirements for video retention over a given policy. Currently it works great for policies that only have ...
0
votes
1answer
21 views

Comparing percentages of a sample to that of the population.

This might be stupid question, but I'm in this sort of situation: 60% of people in a city have a pet cat, but the national rate is 50%. So, assuming we have the required bits of information about ...
1
vote
0answers
25 views

Comparing two percentages when one is negative

I am having trouble comparing two percent values to show the change in one compared to the change in another. For all stores looking at all sales: The average sales growth for week 1 this year ...
0
votes
0answers
21 views

Compounded and Simple Interest Rates

Suppose we have a loan worth 10000 that is being repaid late as a lump sum on a given day 30 days after the due date. Suppose the original interest rate is 5% so that the amount owed before late ...
1
vote
1answer
10 views

Grading limitless variables

I am trying to calculate the quality of a triangle. Parameters are skewness, aspect ratio, and size. Skewness ranges between 0 and 1. Aspect ratio is the ratio of longest edge to shortest edge. ...
1
vote
0answers
18 views

Rebasing of scores to be a more accurate reflection

I want to compare various scores with one another on a fair basis. Let's say I have 4 results: 10/20 (50%) 1/2 (50%) 1/4 (25%) 2/10 (20%) I need to assign weights of importance to the ...
0
votes
2answers
31 views

How do I add a percentage to a value then subtract it again to get the same number?

I'm doing a budget for work where I have to add $15\%$ to a price. But then my client is going to subtract $15\%$ from the total but I need to make the original price back. I.e. $$£100.00 + 15\% = ...
0
votes
0answers
27 views

Get the percentage of a certain category

I have news belonging to 4 categories like sports,movie,politics and current-affairs. Now suppose if I got my total result of news as 45 which belongs all these 4 categories ie ...
-1
votes
1answer
27 views

If this is done properly does your answer come out to $40\%$ or $71.4\%$?? [closed]

A tool room $28$ feet by $35$ feet was enlarged to the dimensions of $28$ feet by $49$ feet. By what percentage did the room size increase?
3
votes
1answer
66 views

Frazzle game question

In $7^{th}$ grade, in order to learn divisibility, memory, and focus, my math teacher had my pre-algebra class play a game called Frazzle. To play the game Frazzle, each person went around the room ...
0
votes
2answers
27 views

Original price formula after discount [duplicate]

I need a short formula to calculate the original price. e.g I bought a cell of $125\$$ after a $27\%$ sale. what is the original price of the cell?
0
votes
0answers
16 views

Pay Plan Calculation

I'm trying to figure out a formula for a pay plan, I think we are calculating things incorrectly but I can't seem to work out the right formula.. The idea is that an employee is paid a percentage of ...