1. What is the Double Discount Calculation?

The double discount calculation determines the final price after applying two successive percentage discounts to an original price. This is commonly used in retail when multiple promotions or coupons are applied to a single item.

2. How Does the Calculator Work?

The calculator uses the double discount formula:

Where:

• \( Original \) — Original price before discounts (USD)
• \( d1 \) — First discount percentage
• \( d2 \) — Second discount percentage

Explanation: The discounts are applied sequentially, with each discount calculated on the price remaining after the previous discount.

3. Importance of Double Discount Calculation

Details: Understanding how multiple discounts combine helps consumers evaluate true savings and helps businesses properly price items during promotions.

4. Using the Calculator

Tips: Enter the original price in USD, followed by both discount percentages. All values must be valid (price > 0, discounts between 0-100%).

5. Frequently Asked Questions (FAQ)

Q1: Is the result different from adding the discounts?
A: Yes. Applying a 20% then 10% discount is different from a single 30% discount. The double discount method results in greater total savings.

Q2: What's the equivalent single discount?
A: For discounts d1 and d2, the equivalent single discount is: 1 - (1 - d1/100) × (1 - d2/100)

Q3: Does order of discounts matter?
A: Mathematically no, but practically yes if discounts have maximum limits or apply to specific price ranges.

Q4: How to calculate triple discounts?
A: Extend the formula: Original × (1 - d1/100) × (1 - d2/100) × (1 - d3/100)

Q5: Can this be used for price increases?
A: Yes, by using negative discount values, though this is less common in retail scenarios.