Percentage Calculator
Calculate what a specific percentage of a number is.
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How to Use the Percentage Calculator
Percentages are fundamental to everyday mathematics, from calculating discounts and tips to understanding financial growth and statistical data. This calculator provides five essential percentage calculations that cover the most common scenarios you will encounter in work, school, or daily life.
The first three calculators address the three basic percentage questions: finding a percentage of a number, determining what percentage one number represents of another, and calculating the original number when you know a value and its percentage. These formulas form the foundation of percentage mathematics and are used countless times in business, education, and personal finance.
The percentage change calculator is particularly useful for analyzing growth or decline over time. Whether you are tracking investment returns, comparing year-over-year sales figures, or measuring performance improvements, this tool instantly shows you the relative change between two values. The result clearly indicates whether the change represents an increase or decrease with color-coded output.
Finally, the add/subtract percentage calculator handles markup and discount scenarios. This is essential for retail pricing, tax calculations, and financial planning. Simply enter your base number and percentage to see both the increased and decreased values simultaneously, making it easy to compare options or verify calculations.