Percentage Decrease Calculator

How the Percentage Decrease Calculator Works

This calculator helps you determine the percentage decrease between two values. It's perfect for calculating discounts, weight loss, price reductions, or any scenario where you need to measure how much something has decreased.

Formula Used

Percentage Decrease = ((Original Value - New Value) / Original Value) × 100

Example Calculation

• Scenario: A product price drops from $100 to $80
• Calculation: ((100 - 80) / 100) × 100 = 20%
• Result: The price decreased by 20%
• Remaining: 80% of the original price remains

Key Features

• Calculate percentage decrease between any two values
• See the absolute decrease amount
• View percentage remaining after decrease
• Automatically detects if value increased instead
• Works with any numbers (prices, weights, quantities, etc.)
• Instant real-time calculations as you type

Common Applications

• Retail & Shopping: Calculate sale discounts and price reductions
• Health & Fitness: Track weight loss progress
• Finance: Measure investment losses or cost savings
• Business: Analyze revenue or expense decreases
• Statistics: Compare data points and trends

Tips for Accurate Results

• Original value should be the starting/initial amount
• New value should be the final/current amount
• For price discounts, original is the before-sale price
• For weight loss, original is your starting weight
• If the result shows an increase, you may have swapped the values