Frequently Asked Questions

General Questions

What is Percentage.co.za?

Percentage.co.za is a free online resource providing accurate, easy-to-use percentage calculators and comprehensive guides. We help people quickly solve percentage-related calculations for shopping, finance, education, health, and everyday life.

Are your calculators free to use?

Yes! All our calculators are completely free to use with no registration, subscriptions, or hidden fees. We believe everyone should have access to simple, reliable calculation tools.

Do I need to create an account?

No. You can use all our calculators without creating an account or providing any personal information. Just visit the calculator you need and start calculating.

Can I use these calculators on my phone?

Absolutely! Our calculators are fully responsive and optimized for smartphones, tablets, and desktop computers. Use them anywhere, anytime.

Privacy & Data

Do you store my calculation data?

No. All calculations are performed locally in your browser using JavaScript. We do not store, save, transmit, or have access to any numbers or data you enter into our calculators. Your calculations remain completely private.

Is my data secure?

Yes. Since we don't collect or store your calculation data, there's nothing to compromise. All calculations happen on your device, ensuring complete privacy.

Do you use cookies?

We may use essential cookies to ensure the website functions properly and analytics cookies to understand how visitors use our site. See our Privacy Policy for full details.

Using the Calculators

How do I use the calculators?

Simply enter your numbers into the input fields and click "Calculate." The result will appear instantly. Each calculator has clear labels showing what values to enter.

What calculators do you offer?

We currently offer:

• General Percentage Calculator - Calculate any percentage of a number, percentage increases, decreases, and more
• Percentage Change Calculator - Find the percentage increase or decrease between two values
• What Percentage Is X of Y Calculator - Determine what percentage one number is of another

Can I copy my results?

Yes! After calculating, you'll see "Copy" and "Share" buttons below your result. Click "Copy" to copy the result to your clipboard, or click "Share" to share via your device's native sharing options.

What if I get an error or unexpected result?

Double-check that you've entered valid numbers in all fields. If you continue to experience issues, please contact us with details about the calculation you're trying to perform.

Can I use negative numbers?

Yes, our calculators support negative numbers. This is useful for calculations involving decreases, losses, or values below zero.

How many decimal places do results show?

Results are typically rounded to two decimal places for readability. This provides sufficient accuracy for most everyday calculations.

Accuracy & Reliability

How accurate are your calculators?

Our calculators use standard mathematical formulas and are thoroughly tested for accuracy. They provide reliable results for everyday use. However, for critical financial, legal, or professional decisions, we recommend consulting with a qualified professional.

Can I rely on these calculators for important decisions?

Our calculators are designed for informational purposes and general use. While accurate, they should not replace professional advice for critical financial, legal, medical, or business decisions.

Do you guarantee the accuracy of calculations?

While we strive for accuracy, we cannot guarantee that our calculators are error-free or suitable for all purposes. Use of our calculators is at your own risk. See our Terms of Service for more information.

Technical Questions

Why isn't the calculator working?

If a calculator isn't working, try these steps:

1. Refresh the page (press F5 or Ctrl+R)
2. Clear your browser cache
3. Make sure JavaScript is enabled in your browser
4. Try a different browser
5. Check that you're entering valid numbers

If the problem persists, please contact us with details about your browser and device.

Which browsers are supported?

Our calculators work on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. We recommend using the latest version of your preferred browser for the best experience.

Do I need an internet connection?

You need an internet connection to initially load the calculator page. Once loaded, calculations are performed locally on your device and don't require an active internet connection.

Can I use these calculators offline?

Once a calculator page is loaded, it can work without an internet connection. However, you'll need to be online to initially access the page or navigate to different calculators.

Learning & Guides

Do you offer guides on how to calculate percentages?

Yes! Visit our Guides section for comprehensive tutorials including:

• How to Calculate Percentages
• Percentage Increase & Decrease Guide
• What Percentage Is X of Y Guide
• Real-World Percentage Examples

Can you help me understand a specific calculation?

Check our guides first - they contain detailed explanations and step-by-step examples. If you still need help, feel free to contact us with your specific question.

Are there tutorials or video guides?

Currently, we offer written guides with detailed examples. We're considering adding video tutorials in the future based on user feedback.

Features & Functionality

Can I print my results?

Yes. Use your browser's print function (usually Ctrl+P or Cmd+P) to print the calculator page with your results.

Can I embed your calculators on my website?

Currently, we don't offer embed functionality. However, you're welcome to link to our calculators from your website. For custom solutions or partnerships, please contact us.

Do you offer an API?

We don't currently offer a public API. If you have a specific use case or business need, please contact us to discuss possibilities.

Will you add more calculators?

Yes! We're constantly working on expanding our calculator collection based on user feedback and needs. Have a suggestion? Let us know!

Common Calculation Questions

What's the difference between percentage increase and percentage of?

• Percentage of: "What is 20% of 100?" = 20 (finding a portion)
• Percentage increase: "100 increased by 20% is what?" = 120 (adding a percentage to the original)

How do I calculate a discount?

For a 25% discount on R200:

Method 1: Calculate discount amount (25% of R200 = R50), then subtract (R200 - R50 = R150)
Method 2: Calculate what you pay (75% of R200 = R150)

Use our General Percentage Calculator for quick discount calculations.

How do I add VAT to a price?

For 15% VAT on R100:

VAT amount: R100 × 0.15 = R15
Total with VAT: R100 + R15 = R115
Or simply: R100 × 1.15 = R115

How do I remove VAT from a price?

If R115 includes 15% VAT:

Price before VAT: R115 ÷ 1.15 = R100
VAT amount: R115 - R100 = R15

What if I need to calculate multiple percentages?

Our General Percentage Calculator has multiple modes for different calculation types. You can switch between modes to perform different calculations quickly.

Business & Commercial Use

Can I use these calculators for my business?

Yes, our calculators are free for personal and commercial use. However, they're provided "as is" without warranties. For critical business decisions, we recommend consulting with qualified professionals.

Can I link to your calculators from my website?

Absolutely! We encourage linking to our calculators. Feel free to share our URLs with your audience.

Do you offer advertising opportunities?

For advertising inquiries, please contact us directly.

Feedback & Support

How can I provide feedback?

We love hearing from our users! Send your feedback, suggestions, or ideas to our contact page. Your input helps us improve and expand our tools.

I found a bug. How do I report it?

Thank you for helping us improve! Please contact us with:

• What calculator you were using
• What numbers you entered
• What happened vs. what you expected
• Your browser and device information

Can I request a new calculator or feature?

Yes! We welcome feature requests. Contact us with your idea, and we'll consider it for future development.

Still Have Questions?

If you didn't find the answer you were looking for, please don't hesitate to contact us. We're here to help!