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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Find profit in percentage
if person smith buy one book in 180 rupees (RS) after few day they sell this book in 250 rupees then who much smith gain profit(profit in percentage) after selling the book.
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How many friends need to visit to take away at least 99% of a person's illness?
This is a very simple problem, but my answer is different from the answer sheet and I can't understand what I did wrong. Do I get something fundamentally wrong or the answer sheet be wrong?
According to an ancient belief, when a friend visits a…
middleschool
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calculating a penalty as a percentage
I was late paying a bill and the total has gone from $124.85 to $136.17
I would like to know how to calculate the increase as a percentage.
Thanks in advance
Hungrydog
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Help with percentages calculation
1000 - 10% = 900
900 + 10% = 990
Is there a way when the first example always result in the second value (990), independent of the value? I can change the percentage with no problem.
What I really need is the result of the second calc to be 1000…
Luis Dalmolin
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Jude's weekly salary was increased by 8% to $237.60. What was her weekly salary before the increase?
I am struggling with basic maths (trying to recap several years). Could you please help me understand the methods to achieve the answer?
I was trying something like:
x -> The initial salary
x(0.08) -> The raise
x + x(0.08) -> The salary with the…
Batstats
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Take percentage and convert it to 0% to 100% range?
Ok, so to calculate the percentage of a number i know that you do this for example if you want to find 5% of 67 (5/100)*67
But let's say i have a number which let's call it a and it is equal to 500, how would i take (for example) 88% of a then take…
Coder1337
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Find out number from pondering percentages
Update
To sumarize:
Given a,b,c,d ∈ [0,100]
and 0.4a+0.3b+0.2c+0.1d=74
How can I find a,b,c,d ?
Old
First question here, and may ( or not ) be simple but I just can't see it.
To explain myself, let me introduce this situation:
I have 4 numbers from…
cortvi
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Finding % of a nutrient dry matter basis
I have a 6 pound recipe with 4 pounds ground beef. Every 100 grams of ground beef has 1.85 grams of Arginine and 58.8% moisture. How much % Arginine on a dry matter basis is in my 6 pound recipe that has 4 pounds of this ground beef?
Second part;…
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Get number between two numbers when input is percent
I need to get the number between two numbers when input is percent.
I use this formula to get a percent between lets say $X = 450$, $A = 400$, $B = 500$ then $R$ will be $50$.
$R = \frac{X-A}{B-A}*100$
How do i find $X$ when only knowing $R$, $A$…
Thomas
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How to solve problems that use a number of items per a set, then extrapolate that to a larger set.
OKay, I know this is a homework question, but I am the dad and I really need to know the proceedure for this!
Here's the question:
One out of every 62.4 batteries is defective. If a company makes 374,400 batteries a day, how many are defective?
I'd…
user3687778
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3 answers
What is the logical reasoning behind splitting the difference?
This is a kind of abstract question regarding the mechanisms and logic of mathematics.
First, let me try to explain what I tried to convey with the topic title.
Let's say I have a value that gets decreased to a lower one, and I want to calculate the…
user364489
- 11
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Calculating the relationship between two numbers
I have a ridiculous problem I need help with:
If A:0,6m2 consumes B:0,95ml of something (say paper consumes water i.e.) how can I use these numbers to calculate any m2 to get the ml consumption? I want to know how much 1m2 consumes, based on that…
Oyvind Andersson
- 101
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How to combine monthly rates?
I have a Google Analytics report that gives certain monthly values as percentages or fractions:
Bounce Pages per
Month Rate Session
----- ------ ---------
March 70% 5.16
April 34% 6.25
May 21% …
Shawn V. Wilson
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Can you work out the average wealth of a population with this information alone
Given that 1% of a population has atleast $x$ amount of wealth, can you work out the average wealth of the entire population, or would you need more information.
I tried working it myself but don't know where to start, so I'm thinking more…
user217339
- 163
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Money over time
If I invest $1000$ dollars, I make $10$% of that on day one.
The next day I take the amount I had plus the profit, and invest it making $10$% of that.
How can I calculate the amount it will be after $100$ days ?
I know the formula for a 10 percent…
dani-hei
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