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 can you express improvement in percentage if figures are getting decreased?
In software engineering runtime reduction is taken as an improvement.
For example, if the initial runtime was 18 hours and now it is 14min, the percentage reduction in runtime is approximately 98.70%.
But can it be expressed in % improvement?
I…
Kartik Anand
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mixture and solution problem?
A mixture of 20 kg of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%.
MYSol : 10% = 10/100 = 1/10 = 2/20 i.e 20kg of solution contains 2 kg of water so the actual spirit…
munish
- 397
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Adding Sections Completion Percentages of a Whole
If a project is divided into two parts and part one is 50% complete and part two is 25% complete, what percentage of the project is completed?
Number of Parts: 2
Part 1: 50%
Part 2: 25%
(Part 1 + Part 2) / Parts = Project Completion…
Diomedes
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Calculating percentage of a profit
399 is the amount you will gain if you invest 345
Therefore profit is 399 - 345 = 54
I want to express profit as percentage of the amount that you'll get back but I'm not sure why 2 methods give different results and what's the meaning of another…
metablaster
- 157
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% of unknown number when trying to find unknown number
I'm working on a spreadsheet for my small real estate business and I'm stuck on a math problem.
I want to find the minimum rent I can charge for a property to still break even. I know the monthly mortgage and all my expenses except 2: vacancy…
jbuck
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Strange behavior and output from percent function in calculator. Can some explain to me what is happening here?
I'm building a calculator web app as a learning exercise, and when I got to the percent function I noticed something strange.
While entering this input on an iPhone calculator - I didn't have a handheld calculator available to verify this - I got…
luis.madrigal
- 103
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Percentage within each other?
Consider finding what percentage the values $15$ and $23$ are within each other. How would I calculate this? To me, it is not clear whether to do $\frac{23-15}{15}$ or to do $\frac{23-15}{23}$ to find this answer. Clearly, both calculations give…
James Chadwick
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Adding percentages to a number
If I want to multiply with multiple percentage increases, I convert it to decimal and then calculate.
Example: 1 * 1.4 * 1.2 = 1.68
Now, I came across someone on reddit who calculates it the following way:
1 + 40% + 20%
Which started an argument…
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A ten dollar loan over two weeks at 8% a day
In one of the Hey Arnold show one character calculates amount of money that needs to be returned after a loan this way:
"A ten dollar loan over two weeks at 8% a day. That's $18.47"
I wonder how he get this number? Complex percent is calculated like…
eugenekr
- 101
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percentage on Income Tax
In a certain country, the Income Tax (IT) is
deducted from monthly wages as follows:
• For salaries up to 1,500.00, TI is zero.
• The portion of salary between 1,500.00 and 3,500.00 is
taxed at 12%.
• portion of salary that exceeds 3,500.00 is
taxed…
Yaacov NNNNM
- 101
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Accurate Venmo seller take calculation
Venmo charges business transaction fee of .10 and 1.9%. Let's say I want to know how much to charge to ensure I get an accurate and specific take after Venmo's fees. What would the formula be?
Right now, it's a matter of brute force; I guesstimate…
Alicia
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How would I get the percentage of a value, but in relation to other values?
So to calculate the percentage, you would do:
(val/total)*100
However, I want to get a percentage based off some form of a scale since I want to calculate a percentage to show rarity of an animal based off its population.
The number 10million is…
Thomasssb1
- 11
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How to figure out this probably simple equation
So i am starting up a new bee pollination service which provides bee hives to local farmers.
I am just having trouble with this question.
So for each Ha 2 bee hives are required for pollination.
equattion
So I'm trying to come up with a formula to…
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Help on reverse engineering a game stat calculation
i hope you're all doing fine, and thanks you for passing by and read my question
I'm doing a reverse engineering of a soccer game stats hexagon (PES games) i manage to figure it that there are two values that affect the position of one of the 6…
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Percent of non-mutually exclusive x AND y
There are x people in a survey.
y% of people checked box A
z% of people checked box B
It is possible to check BOTH boxes
What percentage of x people checked both boxes?
Am I correct in saying that this question is unanswerable without more…
user3544582
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