Proportion-RuleOfThree-Percent

4.0

185 reviews

1L+

Downloads

Everyone

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About this app

Proportions, rule of three, cross-multiplication, percentages. This is a simple app to calculate proportions (rule of 3, cross-multiplication, percentages), by selecting incognite X and entering data. Easily calculate most common cases.

Updated on

10 Aug 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.

No data shared with third parties

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No data collected

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Ratings and reviews

4.0

177 reviews

A Google user

12 February 2020

I like it. That's what I'm looking for. Thanks.

1 person found this review helpful

Sam Prada

5 July 2022

Exactly what it says, exactly what I needed

2 people found this review helpful

A Google user

21 April 2019

How do you get back from the discount screen?

2 people found this review helpful

Ledon

10 September 2019

Always using Android back button to return to previous screens. Thank you Owen!

What's new

Your preference for position of X will be store.
Now we have the calculation of the percentage variation that exists between two values.

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App support

manuelfernandezparadelaledon@gmail.com

About the developer

MANUEL FERNANDEZ PARADELA LEDON

mfpledon@gmail.com

R. Prof. Pedreira de Freitas, 372 - apt. 201-C Tatuapé SÃO PAULO - SP 03312-052 Brasil

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