--- title: "Percentage Change Calculator | Increase & Decrease Tool | XTRAW Tools" description: "Calculate percentage increase or decrease between two values with a free browser-based percentage change calculator." url: "https://xtraw.com/tools/percentage-calculators/percentage-change-calculator" date: "2026-06-24T21:52:44+00:00" language: "en-GB" --- [Percentage Calculator](https://xtraw.com/tools/calculators/math-calculators/percentage-calculators/percentage-calculator) [![Percentage Change Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/xtraw-percentage-change-calculator-360x360.jpg)](https://xtraw.com/images/virtuemart/product/xtraw-percentage-change-calculator-360x360.jpg "Percentage Change Calculator from XTRAW Tools") popular [Back to: Percentage Calculators](https://xtraw.com/tools/calculators/math-calculators/percentage-calculators "Percentage Calculators") # Percentage Change Calculator Calculate percentage increase or decrease between two values. Use this free browser-based percentage change calculator from XTRAW Tools. **Percentage Change Calculator** helps you calculate percentage increase or decrease between two values. Use this free browser-based tool from XTRAW Tools to compare inputs, calculate results, and plan your next step. ## How to Use the Percentage Change Calculator 1. Enter the required inputs shown in the form. 2. Review the number, base, random range, matrix, probability, geometry, fraction, or integer assumptions. 3. Run the tool, then adjust one input at a time to compare scenarios or check your work. ## What This Tool Helps With Calculate percentage increase or decrease between two values. It is designed for students, shoppers, analysts, business users, and anyone comparing old and new values who want a fast, browser-based result before relying on an instructor, textbook, calculator app, code library, professional source, or specialist. - Old Value: 80 - New Value: 100 ## Common Uses People use this tool when they need a quick way to solve math, convert values, check formulas, generate random values, summarize number systems, or verify technical results. - **Math Solving:** Solve school, study, work, coding, technical, or everyday math problems using clear numeric inputs. - **Budgeting:** Use this tool for budgeting and scenario comparison. - **Measurement:** Use dimensions, values, ratios, or measurements to calculate a specific result. ## Formula or Method Percentage Change = (New Value - Old Value) / Old Value × 100 ## Example **Example inputs:** Old Value: 80; New Value: 100 **Example result:** Using the default inputs, the percentage change is 25% increase. ## Related Tools - [Percentage Calculator](https://xtraw.com/tools/percentage-calculator) - [Discount Calculator](https://xtraw.com/tools/discount-calculator) - [Margin Calculator](https://xtraw.com/tools/margin-calculator) - [Markup Calculator](https://xtraw.com/tools/markup-calculator) - [Ratio Calculator](https://xtraw.com/tools/ratio-calculator) - [Proportion Calculator](https://xtraw.com/tools/proportion-calculator) ## Percentage Change Calculator FAQ ### Is the Percentage Change Calculator free? Yes. This tool is free to use on XTRAW Tools. ### Do I need to create an account? No. XTRAW tools are designed for browser-based use without requiring an account. ### Are the results exact? Results may depend on the inputs, formula, rounding, and purpose of the tool. Always verify important results before relying on them. **Disclaimer:** This tool is provided for general informational, educational, and convenience purposes only. It is not legal, financial, medical, engineering, construction, academic, safety, or professional advice. Always verify important results with a qualified professional, instructor, authoritative source, or appropriate specialist before making decisions. **Related Tools** ![Tooltip]() [![Percentage Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-percentage-calculator-360x360_230x230.jpg) Percentage Calculator](https://xtraw.com/tools/calculators/math-calculators/percentage-calculators/percentage-calculator "Percentage Calculator") Calculate percentages, percent of a number, and percentage relationships. Use this free browser-based percentage calculator from XTRAW Tools. Custom prototype for related products [![Discount Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-discount-calculator-360x360_230x230.jpg) Discount Calculator](https://xtraw.com/tools/calculators/finance-calculators/discount-calculator "Discount Calculator") Calculate sale price, discount amount, and savings from a percentage discount. Use this free browser-based discount calculator from XTRAW Tools. Custom prototype for related products [![Margin Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-margin-calculator-360x360_230x230.jpg) Margin Calculator](https://xtraw.com/tools/calculators/finance-calculators/margin-calculator "Margin Calculator") Calculate profit margin from cost and selling price. Use this free browser-based margin calculator from XTRAW Tools. Custom prototype for related products [![Markup Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-markup-calculator-360x360_230x230.jpg) Markup Calculator](https://xtraw.com/tools/calculators/finance-calculators/markup-calculator "Markup Calculator") Calculate markup percentage and selling price from cost. Use this free browser-based markup calculator from XTRAW Tools. Custom prototype for related products [![Ratio Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-ratio-calculator-360x360_230x230.jpg) Ratio Calculator](https://xtraw.com/tools/calculators/math-calculators/ratio-calculator "Ratio Calculator") Simplify ratios and compare proportional values. Use this free browser-based ratio calculator from XTRAW Tools. Custom prototype for related products [![Proportion Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-proportion-calculator-360x360_230x230.jpg) Proportion Calculator](https://xtraw.com/tools/calculators/math-calculators/proportion-calculator "Proportion Calculator") Solve proportions and missing values in equivalent ratios. Use this free browser-based proportion calculator from XTRAW Tools. Custom prototype for related products **Related Categories** ![Tooltip]()[![Math Calculators category image](https://xtraw.com/images/virtuemart/category/17_math_calculators.jpg) Math Calculators](https://xtraw.com/tools/calculators/math-calculators "Math Calculators") Custom prototype for related categories [![Percentage Calculators category image](https://xtraw.com/images/virtuemart/category/151_percentage-calculators.jpg) Percentage Calculators](https://xtraw.com/tools/calculators/math-calculators/percentage-calculators "Percentage Calculators") Custom prototype for related categories [![Finance Calculators category image](https://xtraw.com/images/virtuemart/category/14_finance_calculators.jpg) Finance Calculators](https://xtraw.com/tools/calculators/finance-calculators "Finance Calculators") Custom prototype for related categories [![Education Tools category image](https://xtraw.com/images/virtuemart/category/086_education_tools_350x350.jpg) Education Tools](https://xtraw.com/tools/industry-tools/education-tools "Education Tools") Custom prototype for related categories [![Everyday Utilities category image](https://xtraw.com/images/virtuemart/category/13_everyday_utilities.jpg) Everyday Utilities](https://xtraw.com/tools/everyday-utilities "Everyday Utilities") Custom prototype for related categories ## Schema ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://xtraw.com#organization", "name": "XTRAW Tools", "alternateName": "XTRAW", "url": "https://xtraw.com", "logo": { "@type": "ImageObject", "@id": "https://xtraw.com#logo", "url": "https://xtraw.com/images/xtraw-logo.png#joomlaImage://local-images/xtraw-logo.png?width=1100&height=400", "contentUrl": "https://xtraw.com/images/xtraw-logo.png#joomlaImage://local-images/xtraw-logo.png?width=1100&height=400", "caption": "XTRAW Tools" }, "image": { "@id": "https://xtraw.com#logo" }, "email": "jason@vuumarketing.com", "description": "XTRAW 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