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
1 answer
Car sales fell 0.3%, but consumer confidence fell 3.8%, by what percentage did car sales outperform consumer confidence
It's been a while since I completed high school maths, and this one has me stumped. Sorry for the simplicity of the question.
Basically, what I want to say is "whilst car sales fell, consumer confidence fell more.... car sales, last month…
BossHard
- 23
0
votes
1 answer
How can I find scores of assignments that are needed to get a class grade up to a certain percentage?
Apologies in advance if the question is wordy.
Let's say that I have $75\text{%}$ in a class.The grade is calculated with category weights. Here are the categories and their weights:
Homework: $0.1 (10\text{%})$
Projects: $0.2 (20\text{%})$
Exams:…
ca1c
- 127
0
votes
1 answer
Calculate Total based on Percent Change
I'm trying to help my kid answer this math question. Every example I've found on the internet is far too simple. Can someone help me answer this? And, what type of question is this? Thanks!
Jaden and Leah are wrapping presents. Jaden has wrapped…
Matt
- 13
0
votes
2 answers
How to find which percentile out of 100 a negative number is?
I'm having some logic/math problems in a program I'm trying to fix. So, suppose I have three values, 30, 25 and -15. The sum of these values is always going to be 100%. But I also need to know which percentile out of 100 the -15 is, if there is any,…
0
votes
1 answer
How to efficiently use items in a game I'm playing.
Ok so this has been bugging me for some time now and my brain is just to small so I'm hoping some of you here can help me with this problem.
The goal is to get as much points as possible over time with three different items.
These items are used…
0
votes
1 answer
How do I refer to absolute change in 2 percentages?
I'm writing a paper and I have 45% WER (word error rate) under one condition. Under a different condition, that improves to a 34% WER. It seems incorrect to say that I had an 11% improvement in WER. What would be the correct way to state this?
Shamoon
- 119
0
votes
1 answer
Question about percentage increase
If I have a car that is going at 2.0 speed and I put in special fuel that makes it have 30% reduced speed, what would the new speed be?
William
- 1
- 1
0
votes
2 answers
Finding $~x~ y~$and $~z~$
This is probably too simple of a question for the geniuses here but I can't wrap my head around this backwards algebra logic. I need to know the values of $x$ $y$ and $z$ according to the following data:
$x+y-z=300$
$y$ is $23\%$ of $x$
$z$ is…
Gokki
- 13
- 1
0
votes
0 answers
Percentage rank where lower is better
Let's say I am measuring a metric where the goal is to be $3$ or lower. The actual value is $4$. I want to be at least $95$% within the goal.
If the actual value is for e.g. $2$, then I can say I am $100$% within the goal, as it is below $3$. But…
yui
- 1
- 2
0
votes
1 answer
What efficiency would you be working on in this problem?
So let's say a specific task would take 80 seconds by yourself. But you have 3 other friends working on the task with you. The task now only takes 28.57 seconds. So if when you were working by yourself you were working at 100% efficiency, How much…
Robbie
- 103
0
votes
1 answer
Percentage - Profit and loss question
I bought 3 mangoes and 5 oranges at Rs. 67. After eating 1 mango, I sold the remaining fruits to Raj at Rs. 67, Raj after eating 1 mango and 1 orange, sold the remaining fruits to Ram at Rs. 67, if Raj had an effective profit of 35% in this manner,…
tarun jha
- 49
0
votes
1 answer
Assign weights dynamically according to random generated element numbers between 3 & 15
I have levels of people (say X) generated randomly for an assignment. i have to distribute points among them levelwise. Now lower levels demand a less weight and higher levels get high weights.
Normally if levels were a known number, I would divide…
user2649343
- 11
0
votes
1 answer
Splitting money to equal values after different tax rates
Sorry if the format of this question is slightly off I’m not a regular user but need help.
I have Money of £704000.
This needs to be split between two people A and B equally after tax
A has tax rate of 11.75%
B has tax rate of 23.5%
How would I…
Henry Cooper
- 25
0
votes
1 answer
How to calculate "weighted" Contribution to a goal?
I've searched and searched, and I'm not finding the answer to what I'm trying to find out. Possibly because I'm not asking the question correctly?
Let's pretend you run a team of door-to-door salespeople.
-You have 3 sales associates
-You have a…
0
votes
2 answers
Calculate percentages by excluding negative values
i am not sure where my basics are being messed up while calculating percentages.
Let me give the scenario
Suppose i have assets on My Name
Cash = 12000
Real Estate = 30000
Stocks = 7000
Outstanding loan = -23000
Assets1 = 12000+ 30000 + 7000 -…
GVR
- 101