# Questions tagged [percentages]

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.

997 questions
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### Computing for a number using two different percentage category.

I've come across a government document on a profile of a city, and have been curios to how to solve for this or if there's already a named formula for it. City X Land Area: 49800 ha . Alienable ...
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### How do I convert fraction percentage into mixed fraction?

I know how to convert a fraction into decimal but I want to make my calculation faster so I want to learn how to convert between fractions and percentage. I found this on a book: ...
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### Simple percentage problem driving me crazy

Ok, so lets say to board a cruise ship it would usually take $60$ to $90$ minutes. Now it takes only $10$ minutes. In percentages this is: $60-10 = \frac{50}{60} = 83.3\%$ reduction (ie. from $60$ ...
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### Upvotes and downvotes problematic. [on hold]

I just questioned myself this: Given that I have on a reddit post: $5$ net upvotes $65\%$ upvote ratio. How many upvotes and downvotes do I have in total?. I think its solvable, but after some ...
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### Word Problem - what percent of the women who apply are hired?

At a certain factory, twice as many men as women apply for work. If 5% of the people who apply are hired and 3% of the men who apply are hired, what percent of the women who apply are hired?
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### How to calculate obtaion and total marks from percentage [cgpa & percentage is given]

I got CGPA 3.69 out of 4.00 and i have percentage of each subject like Subject | Percentage | CGPA subject 1 | 88.61% | 3.72 subject 2 | 73.31% |3.26 but i have't total ...
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### How would I avoid a condition in a formula?

Im currently writing an assignment in my math class. I have to calculate the amount of money an individual pays in taxes, based on his income. Where I live (Denmark), if you earn more than 500.000DKK ...
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### Finding the total using only the value and percentage?

I've tried my best to google this, but I cannot seem to google it correctly or it's just not something people use that often. I'm trying to essentially solve for X if the equation is: 80=80% of ...
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### What is 4 divided by 6? [closed]

I had some difficulty , with this problem in class yesterday. I don't know where to begin with. Thanks
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### Stupid question but unsure on Regression.

When I want to do a regression between daily change of currency prices and a daily stock index changes which one shall I use as the dependent and independent variable. Thanks for any help.
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### Sample points logarithmically between a a range of y values

I'm sorry if this a simple question but I couldn't understand the math from example graphs I read online. Example numbers to make this easier: Assume x = 0 to k (but let's assume k = 20) Assume y ...
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### NCAA Bracket Odds of 2 Separate Occurrences Happening.

Ok so i'm trying to do some NCAA bracket odds and I have 6 separate things that have a certain percent chance of happening. The percentages are: ...
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### How to get probability for “at least one” from multiple different percentages

I am trying to figure out some odds for a march madness bracket and I got stuck. I have a list of 6 things that could happen and each of them have different odds of happening (ranging from 85%-3%). I ...
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### weight of ideal soil (given 2 different densities)

QUESTION - What is the total weight, in pounds, of $1$ cubic meter of an ideal soil including the soil solution. You can assume that the particle density of the soil solids = $2.65$ Mg/cubic meter and ...
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### Is the percentage symbol a constant?

Isn't the percentage symbol actually just a constant with the value $0.01$? As in $$15\% = 15 \times \% = 15 \times 0.01 = 0.15.$$ Isn't every unit actually just a constant? But why do we treat ...
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### How to divide a number per zero using another informations

everyone is well? My background for this questions is: I have a number of sent files, also I have a number of expectedly sendt files and finally the percentage of files, so I have: sent/expected (...
1answer
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### Formula for contamination scoring system

I am trying to create a scoring system to show how contaminated a sample is.My aim is for the formula to yield one overall score, to indicate how "concerning" a sample is, i.e. the more it is ...
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### Percentage split among years

Someone tells that over the next 10 years the value of a house will lose 13%. So if the value is 10000 now, the value after 10 years will be 8700. Now I want to generate the following table ...
3answers
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### Is “30 times more likely” equivalent to a “3000% greater probability”?

I am trying to make a persuasive point based on facts and would like to be most accurate / clear in my point. Would "30 times more likely" be equivalent to a 3000% greater probability"
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### A is x% more than B

I am taking the AMC10 test, and I don’t want to lose points on silly misunderstandings. When a question says “A is x% greater/less than B”, or things like that sometimes with money, which respect ...
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### That is the value of an annuity?

The person is gaining $1000$ on the 1st day of every month (annuity) from 2015.12 till 2018.05.31, but 2015.12 the person wants to get $1000$ twice - on the 1st and on the 15th day of December. Find ...
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### Percentage of Common [closed]

How can I calculate the percentage of in this case If 120 things are common between 149 and 160. what would be percentage of common things? I calculated it like this 120*100(120+(149-120)+(160-120))= ...