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Percentage Calculator

3-in-1 multi percentage calculator for common percentage math, discounts, and percentage change.

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1. What is X% of Y?

What is % of = 75.00

2. X is what percent of Y?

is what % of = 25.00%

3. Percentage Change (Increase / Decrease)

From to = 50.00% Increase
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How to Use this Tool

1. Choose the calculation mode from the three available tabs. 2. Enter the numerical values in the corresponding fields. 3. Results update automatically in real-time with step-by-step breakdown.

Mathematical Formula & Explanation

Mode 1: (P% × Total) / 100 Mode 2: (Part / Whole) × 100 Mode 3: [(New - Old) / Old] × 100

About Percentage Calculator

A versatile 3-in-1 Percentage Calculator designed for students, shoppers, and financial professionals. Quickly calculate what is X% of Y, what percentage X is of Y, and the percentage increase or decrease between two values.

Frequently Asked Questions (FAQs)

2 Questions

Everything you need to know about Percentage Calculator and how it works.

Multiply the total number by the percentage you want to find, and then divide the result by 100. For example, 20% of 150 is (150 × 20) / 100 = 30.

Subtract the old number from the new number, divide the result by the old number, and multiply by 100: [(New - Old) / Old] × 100.

How would you rate this tool?

Average rating: 5.0/5 (0 votes)

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