If you have ever stopped in the middle of a sentence and wondered whether you should write percent or per cent, you are not alone. Both forms appear in newspapers, reports, academic writing, websites, and everyday English, which can make the difference seem more confusing than it really is.
The short answer is simple: percent and per cent mean the same thing. Both refer to a number or amount out of one hundred. The difference is mainly a matter of regional spelling and style.
In American English, percent is usually written as one word. In British English and some other varieties of English, per cent has traditionally been written as two words. In modern writing, the symbol % is also extremely common.
So, 25 percent, 25 per cent, and 25% all represent exactly the same value.
The important thing is knowing which form fits your audience and keeping your usage consistent.
Percent vs Per Cent: The Simple Difference
The clearest way to understand the difference is this:
Percent is the standard spelling in American English.
Per cent is the traditional spelling used in British and some Commonwealth English.
They do not have different meanings.
For example:
American English:
About 40 percent of customers chose the cheaper option.
British-style English:
About 40 per cent of customers chose the cheaper option.
With the symbol:
About 40% of customers chose the cheaper option.
The meaning stays exactly the same.
This is why the question is not really about right and wrong. It is more about which style you are following.
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What Does Percent Mean?
The word percent literally means “out of every hundred.”
If 20 percent of people in a group choose something, that means 20 out of every 100 people chose it.
For example:
20 percent of 100 = 20
20 percent of 200 = 40
20 percent of 500 = 100
The idea is always based on a total of one hundred.
That is also why percentages are so useful. They make it easier to compare numbers even when the totals are different.
For instance, saying that 50 students passed a test does not tell you much unless you know how many students took it. But saying that 80% of students passed immediately gives you a clearer picture.
Is “Percent” One Word?
Yes. Percent is written as one word.
This spelling is especially common in American English.
Examples include:
- 10 percent of the population
- a 5 percent increase
- 75 percent of respondents
- nearly 100 percent complete
If you are writing mainly for readers in the United States, percent is usually the safest choice.
It is widely used in business writing, journalism, education, websites, and everyday communication.
Is “Per Cent” Two Words?
Yes. Per cent is written as two separate words.
This form has a long history in British English and is still used in some British, Australian, Canadian, and Commonwealth writing.
For example:
- 10 per cent of the population
- a 5 per cent increase
- 75 per cent of respondents
- nearly 100 per cent complete
Again, the meaning is no different from percent.
The only difference is spelling style.
Percent in American English
In American English, percent is normally written as one word.
You are likely to see sentences such as:
Sales increased by 12 percent last year.
Only 30 percent of applicants were accepted.
The company achieved a 95 percent satisfaction rate.
American readers are used to seeing percent, so using per cent in American-focused writing may look unusual or old-fashioned.
That does not make it incorrect, but it may not match the style your readers expect.
Per Cent in British English
British English has traditionally preferred per cent as two words.
You may see:
Twenty per cent of respondents disagreed.
The price rose by 8 per cent.
Around 60 per cent of households took part in the survey.
However, modern British writing often uses the % symbol, especially in reports, online content, government writing, data-heavy articles, and news.
So British readers may regularly see:
20%
instead of:
20 per cent
This is one reason the difference between percent and per cent is becoming less noticeable in everyday writing.
What About Australian and Canadian English?
Australian and Canadian English can vary depending on the organization or publication.
In Australian English, per cent has traditionally been preferred when the term is written out.
In Canadian English, both percent and per cent can be found. The two-word form has a strong history in Canadian usage, while the one-word spelling has also become common.
If you are writing for an organization, university, government department, or publication, it is always worth checking its style guide.
That is often more important than the general regional rule.
Percent, Per Cent, or %?
This is where things become even easier.
In many kinds of modern writing, you can simply use the % symbol.
For example:
25% of customers renewed their subscriptions.
The company reported a 7% increase in revenue.
Attendance dropped by 3%.
The symbol is common in:
- business reports
- charts and tables
- statistics
- financial writing
- scientific content
- news articles
- online content
- presentations
It is especially useful when several percentages appear close together.
Compare these two sentences:
Sales increased by 10 percent, profit rose by 7 percent, and costs fell by 4 percent.
Sales increased by 10%, profit rose by 7%, and costs fell by 4%.
The second sentence is easier to scan.
Should There Be a Space Before the % Symbol?
In most general English writing, the percentage symbol is placed directly after the number.
Write:
25%
Not:
25 %
That is the form most readers expect to see.
However, some scientific or international style systems may use different spacing conventions, so specialist writers should always follow the required style guide.
For ordinary English writing, though, 25% is the standard choice.
Percent vs Percentage
Another common source of confusion is the difference between percent and percentage.
They are related, but they are not used in exactly the same way.
Use percent when you give a specific number.
For example:
Thirty percent of employees work from home.
Use percentage when you are talking about a proportion more generally.
For example:
A large percentage of employees work from home.
You can also ask:
What percentage of employees work from home?
A simple way to remember the difference is:
Percent usually follows a number.
Percentage is often used without a specific number.
Compare:
50 percent of voters
and:
a high percentage of voters
Both are correct, but they serve different grammatical purposes.
Percent vs Percentage Points
This is an important distinction, especially in news, finance, economics, and statistics.
Imagine a rate increases from 40% to 50%.
You might be tempted to say that it increased by 10 percent, but that is not quite accurate.
The rate increased by 10 percentage points.
Its actual percentage increase is 25%.
Here is the calculation:
The increase is 10.
10 divided by the original 40 equals 0.25.
That means the relative increase is 25%.
So:
40% to 50% = increase of 10 percentage points
but also:
40% to 50% = 25% relative increase
This difference matters because the two statements describe different things.
Common Examples of Percent
Here are a few natural examples using the American spelling:
Only 15 percent of applicants reached the final stage.
The company reduced its expenses by 10 percent.
Almost 90 percent of customers gave positive feedback.
The discount is 20 percent.
She completed 75 percent of the course.
Each example uses a specific numerical amount, so percent fits naturally.
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Common Examples of Per Cent
The same sentences can be written in the traditional British style:
Only 15 per cent of applicants reached the final stage.
The company reduced its expenses by 10 per cent.
Almost 90 per cent of customers gave positive feedback.
The discount is 20 per cent.
She completed 75 per cent of the course.
Nothing about the meaning changes.
Which Form Should You Use?
If you are unsure, think about three things:
Your Audience
If most of your readers are American, use percent.
If you are writing for a British or Commonwealth audience, per cent may be more appropriate depending on the publication.
Your Style Guide
If you are writing for a company, newspaper, university, government organization, or client, follow its rules.
Some style guides prefer words, while others prefer the % symbol.
Consistency
Whatever you choose, stay consistent.
Do not write:
30 percent of customers chose option A, while 20 per cent chose option B.
Instead, use one style throughout:
30 percent of customers chose option A, while 20 percent chose option B.
Or:
30 per cent of customers chose option A, while 20 per cent chose option B.
Consistency makes your writing look more professional.
Common Mistakes to Avoid
One of the most common mistakes is assuming that only one form is correct.
Both percent and per cent are established forms.
Another mistake is writing:
20 percentage of people
That is incorrect.
Write:
20 percent of people
or:
a percentage of people
It is also worth avoiding unnecessary mixing between words and symbols in the same section unless there is a good reason.
For example, this can look inconsistent:
Sales increased by 15%, while profits rose by 10 percent.
A cleaner version is:
Sales increased by 15%, while profits rose by 10%.
Small details like these make writing easier to read.
Does “Percent” Come From Latin?
Yes. The idea behind percent comes from the Latin expression per centum, meaning roughly “by the hundred” or “for each hundred.”
That meaning is still visible today.
For example:
1% = 1 out of 100
10% = 10 out of 100
50% = 50 out of 100
100% = 100 out of 100
This also explains the mathematical relationship between percentages, fractions, and decimals.
For example:
50% = 50/100 = 0.5
25% = 25/100 = 0.25
10% = 10/100 = 0.10
Frequently Asked Questions
Both are correct. Percent is standard in American English, while per cent is the traditional form in British and some Commonwealth English.
Yes. Percent is written as one word.
Yes. Per cent is written as two separate words.
Yes, percent is the standard spelling in American English.
It is the traditional British spelling, although many British publications now use the % symbol with numbers.
Yes. They mean exactly the same thing.
Not always. Percent is normally used with a specific number, while percentage often refers to a proportion in general.
Both can be correct. The best choice depends on the style guide you are following.
In most general English writing, no. Write 20%, not 20 %.
Final Thoughts
The difference between percent vs per cent is much simpler than it first appears.
They have exactly the same meaning. The difference is mainly regional spelling and writing style.
Use percent if you are writing in American English.
Use per cent if you are following a British or Commonwealth style that prefers the two-word form.
Use % when your style guide allows it, especially in numerical or data-heavy writing.
Above all, be consistent.
Whether you write 25 percent, 25 per cent, or 25%, the number does not change. What matters is choosing the form that fits your audience and using it clearly throughout your writing.
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