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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Percentage of percentage to get a normalized trend
I am not really good at math and just would like to understand whether what I make makes sense:
I have two different teams who estimate their effort while working on two identical projects.
Team A estimates the work to be 1000 hours.
Team B…
John V
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Intersection of percentages
I have a problem with the following details:
50% total = comfortable
75% total = without
25% total = with
70% of *with* are comfortable
What percentage of without are comfortable? Please help I'm lost.
Sreten Jocić
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How to calculate percentage drop
I have a business problem which requires calculating drop in percentage across different stages in a survey. Unfortunately, I can't give out the actual business case due to confidentiality reasons, so I have tried my best to explain my case…
museshad
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Rob spent 25% more time on his research project than he had planned. He spent an extra h hours on the project.Khan Academy
The explanation says that he planned to spend $($h$/$25%$)$(100%) hours on the research project. How did they come up with the expression and i don't understand why the h is divided by the 25%. I do understand how it's manipulated to get to 5h but i…
beginwithc
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An "everyday math" problem that I need help in understanding
I understand that you are supposed to use reverse percentages or maybe apply the Total amount payable formula, but I just don't know how. I've been at it for two hours now and I can't seem to figure it out. Can you please help me out here?
Here it…
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A problem based on set-theory
In an examination, at least 70% of the students failed in physics, at least 72% failed in chemistry, at least 80% failed in mathematics and at least 85% failed in english. How many at least must have failed in all the four subjects.(all information…
Piyush Chaudhary
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How much faster is $T_2$ than $T_1$ in percent $\%$?
Say a program runs and results in $T_{1} = 157s$ then is modified and runs in $T_{2} = 16s$.
What is the correct way to display (in %):
How much faster is $T_{2}$ than $T_{1}$?
How much of an increase is the completion time of $T_{2}$ than…
pstatix
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Percentages and Interest
In the question shown in the image, does the question mean that there will be a total increase of $4\%$ each year to the amount in the bond?
So will the answer be $450 \cdot (1.04)^5 = £547.49$ (to the nearest pence)
mku
- 129
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Incremental Percentage Increase (20 steps) Does Not Equal Lower Range Number to End Range Number
Head Scratcher.
I have a range of numbers 7150 - 9150 (2000 difference)
Between that range, I am incrementing by 100.
I am calculating the percentage increase at each of the incremental increases.
The total range percentage increase…
Stephen Gunn
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How to count percentage for monthly input money for 4 years?
In every month, we put ex.: 20 000 "money" to the bank = 240 000 yearly.
In every year the goverment gives 72 000 "money" to our bank account.
This goes for 4 years = (4 * 12 * 20 000) + (4 * 72 000) = 960 000 + 288 000 = 1 248 000
In the end, we…
KollarA
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Why is this way of calculating the same percentage giving different results?
Where I come from the employer must deduct 9.5% of your gross wage pre tax, to pay into a fund we call superannuation.
My daily gross rate is 450 before tax. 9.5% of 450 is 42.75. I get paid fortnightly so 42.75 * 10 working days = 427.50 paid into…
chap
- 113
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Obtain the total amount that needs to be sell at a higher price to recover the initial investment
I'm having problems to solve a petry basic math problem that I need to code ( I feel very stupid cause of this). The problem is that I'm buying an amount of a product at a certain price and selling it at another higher price. The sell can be all at…
exsnake
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Compare percent in relation to amount
I have a six different objects. Each object contain different values for: 'Amount', 'Total', and 'Percentage'.
I want to compare these objects to each other, and see which object "is the best". My first thought was simply to calculate the percentage…
Phrosen
- 11
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Tracking price movements - percentage (multiplicative) vs nominal (additive) change
If I am tracking an asset like a stock (for example), then if it goes down 50% one day, to return to its previous price it would have to go up 100% (rather than 50%). I.e.: 1 * (1 - 50%) * (1 + 100%) = 1
On the other hand if you track nominal…
Eliyahu
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What is his actual gain percent?
By selling balut at 12 pesos each a vendor gains 19.7%. The cost price of balut rises by 12.5%. If he sells the balut at the same price as before, what is his new gain in percent?
dekoy 2142
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