Hướng dẫn percentage in string python

💡 Outline

Nội dung chính Show

• Introduction
• What does %s mean in Python?
• How do I convert a string to a percent in Python?
• What does %s mean in Python?
• How do I convert a string to a percent in Python?

To print percentage sign in Python, we can escape using the percentage sign twice instead of once.

See the code below:

val="The percentage is 92.27" print("%s%%"%val)

Output:

The percentage is 92.27%

Table of Contents

• Introduction
• Print Percentage Sign in Python
  • Using %% Character to Escape Percent Sign in Python
  • Using the format() Function
  • Using the f-String
  • Was this post helpful?

Introduction

In this tutorial, we will see how to print percentage sign in python.

The modulus operator (%) or the percentage sign has multiple usages in Python. We use this operator to calculate the remainder for the division between two values for the arithmetic purpose.

We can also use the percentage sign for various string operations. We use it in string formatting and replacing values using format specifiers.

For example,

this is my code:

Nội dung chính

• What does %s mean in Python?
• How do I convert a string to a percent in Python?
• What does %s mean in Python?
• How do I convert a string to a percent in Python?

Nội dung chính

• What does %s mean in Python?
• How do I convert a string to a percent in Python?
• What does %s mean in Python?
• How do I convert a string to a percent in Python?

print str(float(1/3))+'%'

and it shows:

0.0%

but I want to get 33%

What can I do?

martineau

115k25 gold badges160 silver badges282 bronze badges

asked Mar 15, 2011 at 2:10

3

format supports a percentage floating point precision type:

>>> print "{0:.0%}".format(1./3)
33%

If you don't want integer division, you can import Python3's division from __future__:

>>> from __future__ import division
>>> 1 / 3
0.3333333333333333

# The above 33% example would could now be written without the explicit
# float conversion:
>>> print "{0:.0f}%".format(1/3 * 100)
33%

# Or even shorter using the format mini language:
>>> print "{:.0%}".format(1/3)
33%

maxymoo

33.5k9 gold badges89 silver badges115 bronze badges

answered Mar 15, 2011 at 2:16

mikumiku

175k46 gold badges302 silver badges307 bronze badges

7

There is a way more convenient 'percent'-formatting option for the .format() format method:

>>> '{:.1%}'.format(1/3.0)
'33.3%'

answered May 20, 2014 at 16:00

5

Just for the sake of completeness, since I noticed no one suggested this simple approach:

>>> print("%.0f%%" % (100 * 1.0/3))
33%

Details:

• %.0f stands for "print a float with 0 decimal places", so %.2f would print 33.33
• %% prints a literal %. A bit cleaner than your original +'%'
• 1.0 instead of 1 takes care of coercing the division to float, so no more 0.0

answered Aug 15, 2013 at 10:52

MestreLionMestreLion

11.9k4 gold badges62 silver badges55 bronze badges

6

Just to add Python 3 f-string solution

prob = 1.0/3.0
print(f"{prob:.0%}")

answered Sep 24, 2019 at 21:48

menrfamenrfa

1,23711 silver badges13 bronze badges

4

You are dividing integers then converting to float. Divide by floats instead.

As a bonus, use the awesome string formatting methods described here: http://docs.python.org/library/string.html#format-specification-mini-language

To specify a percent conversion and precision.

>>> float(1) / float(3)
[Out] 0.33333333333333331

>>> 1.0/3.0
[Out] 0.33333333333333331

>>> '{0:.0%}'.format(1.0/3.0) # use string formatting to specify precision
[Out] '33%'

>>> '{percent:.2%}'.format(percent=1.0/3.0)
[Out] '33.33%'

A great gem!

answered Mar 15, 2011 at 2:16

Then you'd want to do this instead:

print str(int(1.0/3.0*100))+'%'

The .0 denotes them as floats and int() rounds them to integers afterwards again.

answered Mar 15, 2011 at 2:16

3

I use this

ratio = round(1/3, 2) 
print(f"{ratio} %")

output: 0.33 %

answered Aug 19, 2021 at 8:16

DGKangDGKang

16212 bronze badges

1

this is what i did to get it working, worked like a charm

divideing = a / b
percentage = divideing * 100
print(str(float(percentage))+"%")

answered Jul 11 at 20:59

What does %s mean in Python?

%s specifically is used to perform concatenation of strings together. It allows us to format a value inside a string. It is used to incorporate another string within a string. It automatically provides type conversion from value to string.

How do I convert a string to a percent in Python?

To convert it back to percentage string, we will need to use python's string format syntax '{:. 2%}'. format to add the '%' sign back.

this is my code:

print str(float(1/3))+'%'

and it shows:

0.0%

but I want to get 33%

What can I do?

martineau

115k25 gold badges160 silver badges282 bronze badges

asked Mar 15, 2011 at 2:10

3

format supports a percentage floating point precision type:

>>> print "{0:.0%}".format(1./3)
33%

If you don't want integer division, you can import Python3's division from __future__:

>>> from __future__ import division
>>> 1 / 3
0.3333333333333333

# The above 33% example would could now be written without the explicit
# float conversion:
>>> print "{0:.0f}%".format(1/3 * 100)
33%

# Or even shorter using the format mini language:
>>> print "{:.0%}".format(1/3)
33%

maxymoo

33.5k9 gold badges89 silver badges115 bronze badges

answered Mar 15, 2011 at 2:16

mikumiku

175k46 gold badges302 silver badges307 bronze badges

7

There is a way more convenient 'percent'-formatting option for the .format() format method:

>>> '{:.1%}'.format(1/3.0)
'33.3%'

answered May 20, 2014 at 16:00

5

Just for the sake of completeness, since I noticed no one suggested this simple approach:

>>> print("%.0f%%" % (100 * 1.0/3))
33%

Details:

• %.0f stands for "print a float with 0 decimal places", so %.2f would print 33.33
• %% prints a literal %. A bit cleaner than your original +'%'
• 1.0 instead of 1 takes care of coercing the division to float, so no more 0.0

answered Aug 15, 2013 at 10:52

MestreLionMestreLion

11.9k4 gold badges62 silver badges55 bronze badges

6

Just to add Python 3 f-string solution

prob = 1.0/3.0
print(f"{prob:.0%}")

answered Sep 24, 2019 at 21:48

menrfamenrfa

1,23711 silver badges13 bronze badges

4

You are dividing integers then converting to float. Divide by floats instead.

As a bonus, use the awesome string formatting methods described here: http://docs.python.org/library/string.html#format-specification-mini-language

To specify a percent conversion and precision.

>>> float(1) / float(3)
[Out] 0.33333333333333331

>>> 1.0/3.0
[Out] 0.33333333333333331

>>> '{0:.0%}'.format(1.0/3.0) # use string formatting to specify precision
[Out] '33%'

>>> '{percent:.2%}'.format(percent=1.0/3.0)
[Out] '33.33%'

A great gem!

answered Mar 15, 2011 at 2:16

Then you'd want to do this instead:

print str(int(1.0/3.0*100))+'%'

The .0 denotes them as floats and int() rounds them to integers afterwards again.

answered Mar 15, 2011 at 2:16

3

I use this

ratio = round(1/3, 2) 
print(f"{ratio} %")

output: 0.33 %

answered Aug 19, 2021 at 8:16

DGKangDGKang

16212 bronze badges

1

this is what i did to get it working, worked like a charm

divideing = a / b
percentage = divideing * 100
print(str(float(percentage))+"%")

answered Jul 11 at 20:59

What does %s mean in Python?

%s specifically is used to perform concatenation of strings together. It allows us to format a value inside a string. It is used to incorporate another string within a string. It automatically provides type conversion from value to string.

How do I convert a string to a percent in Python?

To convert it back to percentage string, we will need to use python's string format syntax '{:. 2%}'. format to add the '%' sign back.

this is my code:

print str(float(1/3))+'%'

and it shows:

0.0%

but I want to get 33%

What can I do?

martineau

115k25 gold badges160 silver badges283 bronze badges

asked Mar 15, 2011 at 2:10

3

format supports a percentage floating point precision type:

>>> print "{0:.0%}".format(1./3)
33%

If you don't want integer division, you can import Python3's division from __future__:

>>> from __future__ import division
>>> 1 / 3
0.3333333333333333

# The above 33% example would could now be written without the explicit
# float conversion:
>>> print "{0:.0f}%".format(1/3 * 100)
33%

# Or even shorter using the format mini language:
>>> print "{:.0%}".format(1/3)
33%

maxymoo

33.5k9 gold badges89 silver badges115 bronze badges

answered Mar 15, 2011 at 2:16

mikumiku

175k46 gold badges303 silver badges307 bronze badges

7

There is a way more convenient 'percent'-formatting option for the .format() format method:

>>> '{:.1%}'.format(1/3.0)
'33.3%'

answered May 20, 2014 at 16:00

5

Just for the sake of completeness, since I noticed no one suggested this simple approach:

>>> print("%.0f%%" % (100 * 1.0/3))
33%

Details:

• %.0f stands for "print a float with 0 decimal places", so %.2f would print 33.33
• %% prints a literal %. A bit cleaner than your original +'%'
• 1.0 instead of 1 takes care of coercing the division to float, so no more 0.0

answered Aug 15, 2013 at 10:52

MestreLionMestreLion

11.9k4 gold badges62 silver badges55 bronze badges

6

Just to add Python 3 f-string solution

prob = 1.0/3.0
print(f"{prob:.0%}")

answered Sep 24, 2019 at 21:48

menrfamenrfa

1,23711 silver badges13 bronze badges

4

You are dividing integers then converting to float. Divide by floats instead.

As a bonus, use the awesome string formatting methods described here: http://docs.python.org/library/string.html#format-specification-mini-language

To specify a percent conversion and precision.

>>> float(1) / float(3)
[Out] 0.33333333333333331

>>> 1.0/3.0
[Out] 0.33333333333333331

>>> '{0:.0%}'.format(1.0/3.0) # use string formatting to specify precision
[Out] '33%'

>>> '{percent:.2%}'.format(percent=1.0/3.0)
[Out] '33.33%'

A great gem!

answered Mar 15, 2011 at 2:16

Then you'd want to do this instead:

print str(int(1.0/3.0*100))+'%'

The .0 denotes them as floats and int() rounds them to integers afterwards again.

answered Mar 15, 2011 at 2:16

3

I use this

ratio = round(1/3, 2) 
print(f"{ratio} %")

output: 0.33 %

answered Aug 19, 2021 at 8:16

DGKangDGKang

16212 bronze badges

1

this is what i did to get it working, worked like a charm

divideing = a / b
percentage = divideing * 100
print(str(float(percentage))+"%")

answered Jul 11 at 20:59