The Percentage Decrease Calculator is a free online tool designed to measure the reduction between two values as a percentage. Unlike percentage difference, which compares values relative to their average, this calculator specifically focuses on how much a value has dropped compared to its original amount. It is widely used for discount calculations, salary deductions, financial analysis and academic purposes.

1. Enter the Old Value: Input the starting number in the first field.
2. Enter the New Value: Add the reduced value in the second field.
3. Click Calculate: The tool will instantly compute the percentage decrease.
4. View Results: Get accurate percentage decrease results within seconds.

Formula Used: [(Old Value – New Value) ÷ Old Value] × 100

• Instant Results: Get calculations in less than a second.
• Free & Unlimited: No usage restrictions or hidden costs.
• User-Friendly Design: Simple interface for beginners and professionals.
• Accurate Calculations: Based on the standard percentage decrease formula.
• Cross-Platform: Works on desktops, tablets and smartphones.

• Discounts & Sales: Calculate price reductions during promotions.
• Finance & Investment: Track decreases in stock values or business revenue.
• Salary Reductions: Calculate deductions or pay cuts in percentage form.
• Academic Performance: Compare test scores and grade drops.
• Research & Statistics: Measure decreases in survey or experimental data.

These terms are often confused, but they are different:

• Percentage Decrease: Compares how much a value has dropped compared to its original value.
• Percentage Difference: Compares two values relative to their average, regardless of which is larger.

• What is percentage decrease? It shows how much a value has dropped relative to its original value, expressed as a percentage.
• Can I calculate percentage decrease manually? Yes. Use the formula: [(Old Value – New Value) ÷ Old Value] × 100.
• Who can use this tool? Shoppers, students, investors, teachers, researchers and professionals.
• Is the calculator free? Yes! It is 100% free and can be used without any limitations.
• Can it calculate percentage increase? No, but you can use our dedicated Percentage Increase Calculator for that purpose.