How to Calculate Percentage – Step-by-Step Guide with Examples & Free Tool

How to Calculate Percentage – Step-by-Step Guide with Examples & Free Tool

Calculating percentages is a basic yet essential skill used in everyday life—whether you’re figuring out discounts, grades, tax, or profit margins.

In this guide, we’ll explain how to calculate percentages, walk through real-world examples, and introduce you to a free online percentage calculator.


✅ What is a Percentage?

A percentage represents a number out of 100. For example:

  • 20% means 20 out of 100
  • 75% means 75 out of 100
Percentage Calculator tool on FixITtoolBox for quick percentage calculations
Percentage Calculator tool on FixITtoolBox for quick percentage calculations

🧮 How to Calculate Percentage Manually

1. Find X% of a Number (Basic Formula)

Formula:
(Percentage ÷ 100) × Total

Example:
What is 20% of 150?
👉 (20 ÷ 100) × 150 = 30

2. Percentage Increase/Decrease

  • Increase:
    ((New – Original) ÷ Original) × 100
  • Decrease:
    ((Original – New) ÷ Original) × 100

🎯 Use Our Free Percentage Calculator

Try our online tool to calculate percentage automatically. No signup or download needed:

👉 Use Percentage Calculator


📊 Common Uses of Percentage:

  • Shopping Discounts (e.g., 40% off)
  • Tax Calculations (GST, VAT)
  • Loan & Interest
  • Grades and Exam Scores
  • Profit & Loss in Business

🔁 Examples You Can Try:

ScenarioExample
Find % of a numberWhat is 15% of 800?
Calculate discount25% off ₹1200
Score to %Scored 37 out of 50
Price after % increaseProduct price increased by 12%

🙋‍♂️ Frequently Asked Questions (FAQ)

Q1. What is the easiest way to calculate percentage?
Use this formula: (Part ÷ Total) × 100

Q2. How do I calculate % increase?
Formula: ((New – Old) ÷ Old) × 100

Q3. Can I use this online?
Yes! Our free percentage calculator helps you get instant results.


🧠 Bonus Tip:

Bookmark the calculator page on your browser or mobile for quick access!


🔗 Related Tools:


Written by: Anjan Kumar
Founder of FixITtoolBox.com – Your go-to for smart online tools.

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