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PercentDiff is the original multi-result percent calculator application.

Using PercentDiff is incredibly easy. There are two tabs. One for two numbers, and one for a number and a percentage. Input your numbers on either tab and all values will be calculated.

The two modes currently available are:

A. % Change (Number 1 to Number 2)

This mode will calculate:
1. Percent increase
** This mode can also be used to calculate gross sales markup

2. Percent decrease
** This mode can also be used to calculate gross margin

3. Percent difference

4. Number 1 as a percent of Number 2

5. Number 2 as a percent of Number 1

B. % Of (Percent of number)

This mode will calculate:
1. Percent of X

2. X plus percent
** Can also be used to calculate markup on a product

3. X minus percent
** Can also be used to calculate markdown on a product

4. X as a percent of an original number

5. X as a percent increase of an original number

6. X as a percent decrease of an original number

We strive to make our apps as simple to use as possible.

Please FEEL FREE TO EMAIL US feedback. We would like to know how users interact with the app and how we can improve upon it.

What’s New

Version 2.61

The one about the keyboard.

Some devices are not properly rendering the vibrancy in the keyboard blur view. The easiest way to fix this is to use the global tint color on the keyboard.

I'm still looking in to the idea of themes. If it's added, it will be an IAP.

Ratings and Reviews

4.5 out of 5
13 Ratings

13 Ratings

Mommadachel ,

So useful!!!!!!!

If it's possible to LOVE a calculator app, then that's how I describe my feelings about this app! It's so simple and incredibly useful - I use it all the time, even more than the "standard" calculator app. I wish there had been a % calculator like this many years ago. Any way you need to determine percentages, based on either 2 numbers, or 1 number and a known percentage, this app does it. You won't be disappointed with this app!

GnLn2814 ,

Absolutely great app, just one suggestion

Absolutely great app as is. Works perfectly! Show both percentages up and down. No extra steps to follow. It’s the only percentage app I use!

One suggestion-in an older version, you could hear the “click” sounds when numbers are pressed- it’s now quiet. I’m always looking to see if the number was pressed or not. Should be an option.

Rock4955 ,

The review I gave. And I don't do many. 📱⌚️📲

What you like: I like from percent change ,to the percent of. Both are very helpful in the field for quick references.

What you don't like:nothing, but surprise me with something new would be great. But I will use and follow you guys regardless.

What you would like to request: a app for old and new versions of the iPad. Thanks. ( PLUS NO ADDS. ). 🤾🏾‍♂️ 🤸🏿‍♀️🇺🇸

App Privacy

The developer, Shaolo LLC, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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