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.

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Calculate percentage of time

I currently need to find the percentage of a song (for my program), I have tried doing it the normal way of (current position)/(total length of song), however since seconds go up to 60 and not 100 this does not work. How would I do this with…
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Calculating the $n$th generation with $p_{n}=\frac{p_{n-1}(1-p_{n-1})}{1-{p_{n-1}}^2}$?

The formula for the next generation $p$ is as following: $$p_{n}=\frac{p_{n-1}(1-p_{n-1})}{1-{p_{n-1}}^2}$$ $p_n$ is the percentage of the new allele in the next generation Also $0
Adnan
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Total percentage difference of items

If I take say $40\%$ of $X$ to create $Y$, and then $40\%$ off of $Y$ to create $Z$ how do I work out the total percentage taken off of $X$ to get to $Z$?
mrcat
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How many student are there in school given the following conditions?

In school there are more than 501 student,they play cricket and hockey, exactly 20% play hockey and exactly 28% play cricket. How many student are there in school? Option $550$ $600$ $700$ None of these Ans d) My approach: I am not able to…
justin takro
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Pay percentages

I pay my 3 employees 50% of all jobs I get and keep 50% myself. Of their 50%, employee A gets 44.12%, employee B gets 29.41% and employee C gets 26.47%. So if a job is worth $10,000, I get $5000, employee A gets $2206, employee B gets $1470.50 and…
James
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If we increace by 25% how much % we have to decrease to get back to original value

I am currently stuck at a problem where i have to add 25% to the original value and then i have to answer how much % I have to devide from the new value to get original value. I tried percent proportion but it seems to not work and i cant think of…
KostasSt7
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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 the information of 2000 how would you work it…
Tom
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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.
Turtle
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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). (See p. 5 at the buttom, warning, it's German:…
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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 student has to complete all of these 3 tasks to get…
Phorce
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Finding the proportion of candidates that passed both Math 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 candidates. Then $\frac{35x}{100}$ failed in…
Taylor Ted
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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 empty. That's 75% loaded. I need a formula to…
tallybear
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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 is not how this is supposed to work. How do I…
DeleteMe
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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 parameters individually before rebasing it to a unified…
HermannHH
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Turn times into percentage for pie chart

First time posting here so hope am in the right place. I have a report which is a breakdown of time spent in hours/minutes for certain projects over a monthly period. I want to show these as a pie chart. For example, I may have:- TASK1 - Duration…
Craig
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