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
0
votes
2 answers
Percent of a percent
I'm trying to calculate the correct percentages of both red and blue paint from a starting mix... It's difficult for me to explain, but the example should be easy enough...
Let's say I have the following recipe:
Starting Mix: 22.20% (already mixed…
a1phanumeric
- 101
0
votes
3 answers
Basic accounting percentage question
I'm looking at a question which I find a little bit confusing. The question is asking me to find the value of the sales tax (17.5%) from a gross figure (£7402).
I know that I can work out the correct answer by finding the difference between the net…
Jimmy
- 123
0
votes
2 answers
simple word problem - percentage of salary
"An employee receives a bonus at the end of each quarter based on her salary for the year. If she earns $1,800$ per month, and her bonus is $3.5$% of her yearly salary, her bonus for the previous quarter is...?"
Book says answer $756$. They get…
Jessica M.
- 227
0
votes
3 answers
Deduct percentage from x to reach desired value
Let's suppose I need \$200,000 to pay a debt, no more, no less. So I placed a property to sell with an agent, but I know the agent will deduct 6% for himself, which will amount to \$12,000.
Since this will result in less money than what I need,…
anon
0
votes
1 answer
Another mid level math question about %.
$A = 1000, B = 0.6$
$Y \times B = A ; (? \times 0.6 = 1000)$
Need to find $Y$ every time I change $A$ or $B$. How do i ask a calculator to do that (: ?
(I managed to reverse engineer a way from another answer by René Richter - which is)
$(1 /…
helena4
- 193
0
votes
2 answers
mid level math question about %.
$A = 1000, B = 1.2$
$A\times B = C (1000\times 1.2 = 1200)$
$X\times C = A (? \times 1200 = 1000)$
Need to find $X$ every time I change $A$ or $B$. Probably there is formula that is able to solve this since the only way I know how to do it is…
helena4
- 193
0
votes
2 answers
Multiply by a percentage
Ok, so this is pretty trivial but my head is battered so need some help!
What calculation is the equivalent of $30,000 \times 0.073\%$?
I am a PHP programmer and cannot simply do $ 30000\times 0.073\%$. I need the straight math for it.
I look…
Wildcard27
- 125
0
votes
2 answers
Calculate a number based on percentage
Current i have a certain percentage. (0% - 100%)
i need to convert this percentage to a number in a range. (-45 degrees - 45 degrees)
how would i do this?
so:
0% = -45 degrees
50% = 0 degrees
100% = 45 degrees
any help is appreciated
sn0ep
- 101
0
votes
1 answer
What is the simplest formula for taking more and more percentages from a number?
For example, say I have $500 and I need to take 10% of it. Then later I need to take 5% of the next number:
500 - (500 * .10) = 450
450 - (450 * .5) = 427.5
What's the simplest formula for taking continual percentages of the next number (this may…
cg22
- 103
- 2
0
votes
1 answer
Calculating the amount of a loan
What is the amount of loan that costs £45 when repaid after 1 year when the
interest rate is 9% per annum?
So, far I have got 45/0.09=500
but, could it also be 45/1.09 ≈ 41.28
user3184807
- 547
0
votes
1 answer
how to calculate when two simultaneously increasing numbers will reach a certain ratio
Say i'm playing a game that has two outcomes: win or lose.
Every round I calculate the win percentage by dividing the the number of wins by the total number of rounds played.
1/1 ＝ 100% | 1/2 ＝ 50% | 39/100 ＝ 39% | 152/400 ＝ 38%
Let's say…
el3ati2
- 103
0
votes
1 answer
Nominal salary inflation adjustment problem
Given that average inflation from 2014 until 2024 is 4%, how big increase in nominal salary you would need in order for your real salary to increase 30% from 2014 until 2024?
Victor
- 3
0
votes
2 answers
Converting Percentage of Day into Hours
How would I go about taking a percentage of 24 hours and converting it into an hour?
Basically, this is for a piece of code that I'm writing - and I need to calculate figures for every hour in the year.
So far, the total of hours in the year is 8760…
0Neji
- 103
0
votes
1 answer
percent occupied for each month
An air plane recorded how many of its 180 seats were occupied in past five months january-130 february-121 march-168 april-179 may-178 how many percent occupied for each month?
0
votes
1 answer
Formula for percentage over time with multiple inputs
I'm trying to design a formula that will help me create a line graph that shows how well a user's data adheres to a goal (percentage-wise) while using more than two inputs.
I know that's confusing, so let me give my example: I'm writing a software…
IT Bear
- 103