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Percentages Calculators

Percentage calculators provide a wide range of tools to solve percentage-related problems with ease and accuracy. Whether you’re calculating percent increase or decrease, converting between fractions, decimals, and percents, or working with ratios and mixed numbers, these calculators are designed to assist students, teachers, and professionals alike. They simplify everyday tasks like discounts, tax, profit margins, and exam scores, as well as more complex percentage formulas used in math and finance.

Average Percentage

This calculator allows you to find the average percentage of a set of values using either the simple mean or the weighted mean method. Whether you're analyzing exam scores, financial metrics, or statistical data, it supports both equal and variable importance across entries.

Percentage Error

This calculator helps you compute the percentage error between an experimental (measured) value and a theoretical (true or accepted) value. It’s essential for students, scientists, and engineers who need to quantify accuracy and assess how close a result is to the expected value.

Percentage Difference

This calculator helps you find the percentage difference between two values. It's useful when comparing measurements, prices, results, or data points to understand how much they differ in relative terms, regardless of which value is larger.

Reverse Percentage

This calculator helps you find the original value before a known percentage increase or decrease was applied. Whether you're working with discounted prices, tax-inclusive amounts, or past financial values, it quickly calculates what the number was before the percentage change.

Percentage Change

This calculator helps you determine the percentage change between two values, whether it's an increase or decrease. It’s ideal for analyzing price shifts, financial trends, academic scores, and more—providing a clear percentage that reflects the overall change.

Percentage Decrease

This calculator helps you find the percentage decrease from one value to another. Whether you're analyzing price drops, losses, or reductions in performance, it provides fast and accurate results for comparing changes over time.

Percentage Increase

This calculator helps you determine the percentage increase between two values. Whether you're analyzing price changes, salary growth, population statistics, or test scores, it gives you a quick and accurate percent increase result.

Percentage Calculator

This calculator allows you to quickly solve three essential types of percentage problems: – What is X% of Y? – X is what percent of Y? – X is Y% of what number? It's perfect for students, shoppers, and professionals who need accurate percentage results for math, finance, or daily life.

Relative Percentage Difference

Use this Relative Percentage Difference Calculator to measure the variation between two values in percentage terms. It is helpful for comparing experimental vs theoretical values, evaluating financial changes, or analyzing measurement accuracy. Just input the two numbers and get the result instantly.