Percentage Calculator – Quick Percent & Ratio Tool
Easily calculate percentages, percentage change, and ratios. Great for shopping discounts, marks, business, and day-to-day calculations.
What is a Percentage Calculator?
A Percentage Calculator simplifies calculations involving percentages, such as finding a percentage of a number, calculating percentage increase or decrease, or determining the total amount given a base value and percentage. It is widely used in finance, education, and retail to quickly perform percentage-related math without manual formula calculations.
Percentage of a Number
Percentage Change
Find the Whole
Percentage Discount
Percentage Difference
What Percentage?
How Does the Percentage Calculator Work?
The user inputs the base value and the percentage rate, then selects the desired calculation type (e.g., calculate 10% of 50, or find what percentage 15 is of 200). The calculator applies the relevant formula and outputs the final value instantly, making percentage math simple and error-free. Common formulas include:
- Percentage of a number = (Percentage / 100) × Base Value
- Percentage of change = (Change / Original Value) × 100
- Find the Whole = (100 × Part) / Percentage
- Percentage Discount = (Discount Percentage / 100) × Original Price
- Percentage Difference = |Value1 - Value2| / ((Value1 + Value2)/2) × 100
- Percentage = (Part / Whole) × 100