Percentage Change Calculator
Enter your original and new values to see the percentage increase or decrease instantly.
Enter Starting and New Data
Add your original value in the first field and the updated value in the second. Use any comparable metrics like prices, revenue, traffic counts, or conversion rates measured at different points in time.Discover powerful features to boost your productivity. You are always welcome to visit our little den. Professional in their craft!
See Percentage Difference
Click calculate to view the percentage change between your two values immediately. Positive results show growth while negative numbers indicate decline. Reset to compare different data sets quickly.
Key Benefits
Compare values across time periods with accurate percentage calculations that simplify trend analysis instantly.
Analyze Price Fluctuations
Track product pricing changes, subscription adjustments, or competitor rates with clear percentage differences. Understand pricing trends over weeks or months to inform discount strategies and revenue forecasting.
Measure Campaign Results
Compare before-and-after metrics from marketing campaigns to quantify impact accurately. See exact percentage improvements in leads, conversions, or engagement without manual calculations or formula errors.
Skip Manual Calculations
Avoid spreadsheet formulas and calculator apps when presenting performance data to teams or clients. Get instant, accurate percentage changes ready for reports, presentations, or stakeholder updates within seconds.
Track Performance Shifts
Monitor changes in revenue, traffic, sales velocity, or customer metrics across any timeframe you choose. Spot positive momentum or concerning declines early to adjust tactics before quarterly reviews or board meetings.
Frequently asked questions
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The relative difference between two values expressed as a percentage. It shows how much something increased or decreased from its starting point—useful for tracking price shifts, performance changes, or campaign results over any timeframe you choose.
Enter your original value and new value in the input fields provided. Click calculate to see the percentage increase or decrease instantly—positive results show growth while negative numbers indicate declines without manual calculations or formulas.
Track any comparable metrics like product prices, revenue figures, website traffic, conversion rates, or sales velocity. Compare values from different time periods to quantify changes accurately for reports, presentations, or stakeholder updates.
Yes—enter old and new pricing to see exact percentage increases or decreases. Track competitor rate changes, subscription adjustments, or discount impacts to inform pricing strategies and revenue forecasting decisions with clear numerical data.
Use percentage change for any before-and-after comparison regardless of timeframe. Use month-on-month growth specifically for tracking monthly business metrics—this calculator works for days, weeks, months, or years of data points flexibly.
Completely free with no limits or login required. Calculate unlimited percentage changes for different data sets whenever you need accurate comparisons—fast, simple, and accessible for anyone analyzing trends, prices, or performance shifts quickly.
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