How to calculate percentage difference between two numbers?

Use |(A - B) / ((A+B)/2)| × 100.

Is this percentage calculator free?

Yes, the calculator is free to use.

Percentage Calculator – Free Online Tool

Calculate any percentage instantly: marks, money, increase, decrease, difference, and percentage of a percentage. Step-by-step solutions with visual charts.

Percentage (X%)

Number (Y)

Example: 20% of 150 = 30

0%20%100%

20%

Percentage
20%

Result
30.00

How to Use This Percentage Calculator

English: Select the calculation type (Basic, Increase, Decrease, etc.). Enter the numbers in the input fields. Click "Calculate" or press Enter. The result, formula, and step-by-step solution will appear instantly.

Basic % – Find X% of Y
% Increase – From A to B
% Decrease – From A to B
% Of – X is what % of Y
% Difference – Difference between two numbers
% of % – Percentage of a percentage

हिंदी: गणना प्रकार चुनें (Basic, Increase, Decrease, आदि)। इनपुट फ़ील्ड में संख्याएँ दर्ज करें। "Calculate" बटन दबाएँ। परिणाम, सूत्र और चरण-दर-चरण हल तुरंत दिखाई देगा।

Basic % – Y का X% ज्ञात करें
% Increase – A से B तक वृद्धि
% Decrease – A से B तक कमी
% Of – Y का X कितना % है
% Difference – दो संख्याओं के बीच अंतर
% of % – प्रतिशत का प्रतिशत

Features

✔️ 6 calculation modes (Basic, Increase, Decrease, % Of, Difference, % of %)
✔️ Instant results with step-by-step explanation
✔️ Visual percentage bar chart
✔️ Supports marks, money, and more
✔️ Free to use
✔️ Mobile-friendly

Benefits

✔️ Saves time – no manual calculations
✔️ Useful for students, teachers, finance, business
✔️ Understand formulas with clear steps
✔️ Visual representation helps learning
✔️ Works after first load

Frequently Asked Questions

How to calculate percentage of marks?

Divide obtained marks by total marks and multiply by 100. Example: 450/500 × 100 = 90%.

What is the formula for percentage increase?

[(New - Original) / Original] × 100. From 100 to 150 = 50% increase.

How to calculate percentage difference?

|(A-B) / ((A+B)/2)| × 100. Example: (100-80)/90 × 100 = 22.22%.

How to calculate percentage of a percentage?

Multiply the two percentages and divide by 100. Example: 20% of 50% = (20×50)/100 = 10%.

Is this tool free?

Yes, free to use.

Can I use it for money calculations?

Yes, enter monetary values and get percentage increase, decrease, or discount.

What is the percentage formula?

Percentage = (Part / Whole) × 100.

How to calculate percentage in Excel?

= (Part/Total)*100 or = (New-Old)/Old*100.

What is percentage decrease formula?

[(Original - New) / Original] × 100. Example: 200 to 150 = 25% decrease.

How to find what percent X is of Y?

(X / Y) × 100. Example: 30/150 × 100 = 20%.

Does this tool show step-by-step?

Yes, after calculation you get detailed steps and formula used.

Can I use it on mobile?

Yes, fully responsive.

Is there any limit on calculations?

No, you can calculate unlimited times.

What is percentage difference vs percentage change?

Difference uses average, change uses original value. Both supported.

How accurate is this calculator?

It uses precise arithmetic and is accurate to 4 decimal places.