Thank you for using Percent - Percentage Calculator. We are dedicated to providing a simple, accurate, and efficient percentage calculation experience. If you encounter any issues or have suggestions, please refer to the information below.
Percent is a comprehensive percentage calculation tool that supports five different types of percentage calculations, meeting your various calculation needs in daily life, study, and work.
Function: Calculate what percentage of a number is
Example: What is 15% of 1000? Answer: 150
Formula: Result = Base × Percentage ÷ 100
Function: Calculate the result after increasing or decreasing a number by a certain percentage
Example: What is 200 increased by 20%? Answer: 240
Example: What is 500 decreased by 10%? Answer: 450
Function: Calculate the change amount and change percentage from one number to another
Example: From 100 to 120, the change is +20, change percentage is +20%
Function: Calculate what percentage one number is of another
Example: What percentage is 25 of 200? Answer: 12.5%
Formula: Percentage = (Part ÷ Total) × 100
Function: Calculate the original value knowing the result and percentage
Example: 20% of what number is 40? Answer: 200
There are five tabs at the bottom of the app, each corresponding to a different calculation type. Tap the respective tab to switch to the corresponding calculation interface.
Tap the language selector button (globe icon) in the top right corner to choose from 32 available languages. The app will remember your choice and automatically use your last selected language the next time you open it.
Supported languages include: Chinese (Simplified/Traditional), English, Spanish, French, German, Japanese, Korean, Russian, Arabic, Portuguese, Italian, Dutch, Polish, Turkish, Swedish, Norwegian, Danish, Finnish, Greek, Czech, Hungarian, Romanian, Thai, Vietnamese, Indonesian, Malay, Hebrew, Hindi, Urdu, Persian, Ukrainian.
Tap the copy button next to the calculation result to copy it to the clipboard. A confirmation message will appear when the copy is successful.
The app uses Swift's Double type for calculations, ensuring high-precision results. Results are automatically formatted for display, typically showing an appropriate number of decimal places.
No. Percent is a completely offline app. All calculations are performed locally on your device, and all features work without an internet connection.
No. We do not collect any user data. All numbers you enter and calculation results are only stored in your device's local memory and are cleared when the app is closed. The only thing saved is your language preference, which is also stored only on your local device.
Please check the following:
If the above information does not resolve your issue, or if you have found a bug in the app, or if you have any feature suggestions, please feel free to contact us:
We continuously improve Percent and regularly release updates to optimize user experience and fix issues. Please enable automatic updates in the App Store, or check regularly for updates to get the latest version.