Welcome to Multi-Function Calculator
This is a powerful online calculation tool that supports basic operations, percentage calculations, and change rate calculations. Simple to use, fast and accurate, meeting all your calculation needs.
Online Calculator
Calculation Result
Features
Basic Operations
Support for addition, subtraction, multiplication, and division
Percentage Calculation
Calculate the percentage of one value relative to another
Change Rate Calculation
Calculate the increase or decrease rate between two values
How to Calculate Percentages
Calculating percentages is a useful skill for shopping, grades, and everyday math. The basic formula is:
For example, if you scored 45 out of 60 on a test, your percentage is (45 / 60) × 100% = 75%.
To use the calculator above, enter the numbers you want to compare, select the percentage operation, and get your result instantly.
Frequently Asked Questions
How do I calculate a percentage?
Divide the part by the whole, then multiply by 100. For example, (20 / 80) × 100% = 25%.
Can I use this calculator for discounts?
Yes! Enter the original and discounted prices to find the percentage off or the final price after discount.
Is there a limit to the numbers I can enter?
No, you can enter any numbers you need. The calculator supports both small and large values.
What if I want to calculate the percentage change?
Use the change rate calculation feature to find the increase or decrease between two values as a percentage.