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.
Questions tagged [percentages]
1440 questions
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How do I calculate the wholesale price, if I have the retail price and the wholesale markup %?
Given that I have the retail price & desired retail markup % of an item, how do I then calculate the wholesale price?
Say the following is true for a cup:
Retail: $100
Desired Markup: 100%
Wholesale: $???
Instinctively I know that the Wholesale…
marcamillion
- 215
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Percentage change explanation
When I want to calculate the percentage change between two values over time.. I use this formula:
((customers2014 - customers2013) / (customers2013) * 100)
What's the difference between divide the difference between 2014 and 2013 by the newest value…
salvob
- 103
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Mathematics C level: interrest rates percentages - need help!
The number of fish in a lake declined by 30% over 13 years. What is the average yearly decline in the number of fish?
I know how to increase, but I can't seem to figure out how to calculate decline, can anyone help explain?
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Math problem: How to fairly rank competitors on a number of criteria
I have been trying to come up with a formula that would allow ranking competitors according to their success at solving certain tasks, but with a number of criteria in mind. Maybe something exists that I don't know of. Here is the description of…
jrm
- 101
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Explain formula for compound interest
I have to solve the following problem:
Mark wants to buy a house for $200000\$$ and decides to take out a twenty five year mortgage to pay for it. Given that the interest on the mortgage is $2\%$ per month, explain why his monthly repayments of…
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Is there any alternative/simplified formula on deducting multiple percentage of a number from itself?
EDIT: Sorry for the unclear description of what I really wanted. I have completely rewritten my question to make it clearer..
On a specific software I am creating, I want to know if there is an alternative formula on finding x here:
d = a / 100
e =…
Bibokid
- 113
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How to find number if percentage is known
10.5% = 1.0 and 100% = 9.0
How to find number which is equal to 27.36% from this range?
Roman Banakh
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Commission in Profit and Loss
To understand this commission concept in any aptitude question has always been a burden to me.
May anyway please show me an insight view into this concept.
" By what percentage must the cost price be raised in fixing the sale price in order that…
Shubham Raj
- 93
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I need to figure what % of our total monthly income I contribute.
If I make ${$}1100$ month and my husband makes ${$}2720$ month (total combined ${$}3820$ month), what percent do I make of our total monthly income and what percent does my husband make of our total monthly income?
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Find the value of $X$ to equal a percentage of a defined number
I'm presented with the problem below, where $X$ and $Y$ are unknown.
$$\begin{cases}X - 100,000 = Y\\(Y/X) \cdot 100 = 25\end{cases}$$
Is there any formula to figure out the value of $X$?
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What is the rolling compounded annual ROI if you start off using .000457% ($4.57) of $10,000 over 1,095 trades?
What is the rolling compounded annual ROI if you start off using .000457% ($4.57) of $10,000 over $1,095$ trades?
If you use a flat 0.000457 it would be 50.04% ($5,004.15) but if you continuously use a compounded 0.000457% it will grow every day…
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Percentage Off a Sale Price
How can I find the percentage off of a sale price? For example, the sale price of an item is $\$13$. The original price was $\$85$. What percentage was discounted from the original price?
For example, the sale price of an item is $\$19$. The…
GTS Joe
- 103
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2 answers
How many people required to complete a job?
I am facing issue solving below problem. Any help?
Total number of tasks are 6780 in a year. And 17 people are efficiently working in a year to complete different tasks to 100%.
Now there will be 20% work increase next year.
How many more people we…
Aamir Shahzad
- 111
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Percentage formlae for each Vehicle parked?
I'm writing a C++ Car park program that holds Cars, Vans and Bikes, and I need to be able to give the percentage for each item that is currently in the car park.
To make my question short, if the car park has 5 cars, 4 vans and 2 bikes, what is the…
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Percentage Calculation of a total amount
Maths was never my strong point however I have a total of $350 how can I calculate it so that I can get 25% of the total $350?
Jess McKenzie
- 101