Who We Are
Hi, I’m Erni, and PercentageLab is created and maintained by me. I’m a software developer with a strong interest in practical math and problem-solving. My focus is on building simple, easy-to-use tools that make everyday percentage calculations clear and accessible.
Using my experience in programming, I design calculators that deliver fast and accurate results without complicated formulas or confusing explanations. The goal is to help users understand percentages quickly and avoid common calculation mistakes.
PercentageLab is a simple website focused entirely on percentage-related calculators. Every tool is built with clarity, accuracy, and usability in mind, helping users save time and calculate with confidence.
What We Do
The PercentageLab provides a collection of free percentage calculators that turn common math percentage problems into simple, instant results and user friendly tools. Each calculator is built using standard mathematical formulas and focuses on clarity, accuracy, and ease of use.
Our PercentageLab helps with:
- Percentage increase and decrease
- Percentage difference
- Percent off and discount calculations
- Ratio to percentage and percentage to ratio
- VAT, margin, and other percentage-based calculations
The goal is simple: turn confusing math into clear results, and all tools are free to use and require no registration.
Who This Site Is For
The PercentageLab is useful for:
- Students learning percentages
- Teachers and educators
- Shoppers comparing prices and discounts
- Business owners and freelancers
- Anyone needing quick and accurate percentage calculations
No advanced math knowledge is required.
My Mission
My mission is to provide clear, reliable, and free percentage calculators that anyone can use with confidence. These tools are meant to support learning and everyday calculations, not replace professional advice. I want users to feel confident that the results come from simple, correct math, presented in a practical way.
Experience Behind the Tools
These calculators are built around real-world use cases, including student homework, shopping discounts, budgeting, and business-related percentage problems. The tools are designed based on common questions and mistakes people make when working with percentages, helping users avoid errors and save time.
How We Ensure Accuracy
All percentage calculators on this website are based on standard mathematical formulas commonly taught in schools and used in everyday calculations. While we aim to provide accurate and reliable calculations, all tools are intended for general and educational use only.
To maintain accuracy:
- Calculations follow established math principles
- Inputs and outputs are clearly labeled
- Results update instantly to reduce manual errors
- Tools are reviewed and improved regularly
While every effort is made to ensure accuracy, users are encouraged to double-check results for important academic, financial, or professional decisions.
Transparency & Trust
This website does not require user registration and does not store calculation data. All tools are free to use and designed to work instantly in your browser. Any references or explanations provided are intended to help users better understand percentage calculations in a clear and simple way.
Disclaimer
The calculators and content on this website are provided for informational and educational purposes only. They are not a substitute for professional financial, academic, or business advice. Always verify results before making important decisions.
Future Plans
The goal is to continue expanding the site with additional percentage-based tools, clearer explanations, and improved usability. Future updates will focus on making the calculators even more helpful and reliable for users worldwide.
Get in Touch
If you have questions, feedback, or suggestions for new calculators, feel free to get in touch. Your feedback helps improve the tools and guides future development. Whether you’re a student, professional, or just solving a quick percentage problem, your ideas are always welcome.
Contact details will be available soon