Percent Difference Calculator - Percent Diff

Instantly calculate the rate of change between two values! All percentage calculations for stocks, sales, discounts, and more in one app.

Percent Difference Calculator - The Fastest and Most Accurate Rate of Change Calculator
Easily solve all percentage calculations needed in daily life and work!

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This app is essential for

- Stock investors - Instantly check stock price fluctuations
- Business owners - Analyze sales growth rates
- Students - Calculate grade improvements
- Shoppers - Compare discounts and price changes
- Dieters - Track weight loss percentages
- Professionals - Calculate performance achievement rates

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Key Features

[Simple Calculation]
- Just enter the old value and new value!
- Automatically determines increase/decrease
- Real-time results

[Smart Convenience Features]
- One-touch examples provided (stocks, sales, weight, prices)
- Easy sharing with result copy function
- Automatic calculation history saving
- Customizable decimal places

[Modern Design]
- Clean Material Design 3
- Full dark mode support
- Smooth animations
- Intuitive user experience

[Global Support]
- 6 languages supported (Korean, English, Japanese, German, French, Spanish)
- Number format support for each country

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Usage Examples

[Stock Investment]
"What's the return when a stock goes from $70 to $75?"
→ +7.14% increase!

[Diet]
"What's the loss rate when going from 180lbs to 170lbs?"
→ -5.56% decrease!

[Sales Management]
"What if this month's sales increased from $50,000 to $65,000?"
→ +30% growth!

[Discount Calculation]
"What's the discount rate when a $39.99 product becomes $29.99?"
→ -25.03% off!

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Why Percent Difference Calculator?

1. Fast calculation - Instant results without complex formulas
2. Accurate results - Uses verified mathematical formulas
3. Clean UI - Only essential features, no clutter
4. Free to use - All features available for free
5. Offline support - Works without internet

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Calculation Formula

((New Value - Old Value) / Old Value) x 100 = Rate of Change (%)