Percentage Calculator

Advanced percentage calculations - find percentage values, increases, decreases, and more!

What is X% of Y?

X is what percent of Y?

X is Y% of what value?

Percentage Change/Increase/Decrease

Discount & Sale Price Calculator

What is a Percentage Calculator?

A percentage calculator is a versatile tool that helps you quickly perform various percentage-based calculations. Whether you need to find a percentage of a number, calculate percentage increases or decreases, determine discount savings, or solve other percentage problems, this calculator makes it simple and error-free.

Types of Percentage Calculations

  • Basic Percentage: Find what is X% of Y (e.g., What is 15% of 200?)
  • Percentage Of: Calculate what percentage one number is of another (e.g., 15 is what percent of 60?)
  • Value Is: Determine the whole value when you know a part and percentage (e.g., 25 is 20% of what number?)
  • Percentage Change: Find the percentage increase or decrease between two values
  • Discount Calculator: Calculate sale prices and savings when shopping

How to Use This Calculator

Simply select the type of calculation you need from the tabs above, input the required numbers, and click "Calculate" for instant results. Each calculator section handles a different type of percentage problem.

Common Uses for Percentage Calculations

  • Shopping discounts and sales tax
  • Tipping at restaurants
  • Calculating test scores and grades
  • Financial planning and investment returns
  • Business profit margins and growth rates
  • Nutritional information on food labels
  • Statistics and data analysis

FAQs About Percentage Calculations

1. What is the formula for calculating a percentage?

The basic formula is: (Part ÷ Whole) × 100 = Percentage

2. How do I calculate percentage increase?

Percentage increase = ((New Value - Old Value) ÷ Old Value) × 100

3. How do I calculate a discount?

Discount Amount = Original Price × (Discount Percentage ÷ 100)
Sale Price = Original Price - Discount Amount

4. How accurate is this calculator?

This calculator provides results accurate to two decimal places for most calculations.

5. Can I use this calculator for my homework?

Yes! This calculator is perfect for checking your math homework or understanding percentage concepts better.