Discount Formula:
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A discount calculation determines the reduced price of an item or service by applying a percentage reduction to the original price. It's commonly used in retail, sales, and financial transactions.
The calculator uses the discount formula:
Where:
Explanation: The formula calculates the discount amount by multiplying the original price by the discount rate (expressed as a decimal). The final price is then calculated by subtracting the discount from the original price.
Details: Accurate discount calculations are essential for businesses to determine profit margins, for consumers to understand savings, and for financial planning in both personal and commercial transactions.
Tips: Enter the original price in dollars (without currency symbol) and the discount rate as a percentage (without % sign). For example, for a 15% discount, enter "15" in the discount rate field.
Q1: How do I calculate a 20% discount?
A: Multiply the original price by 0.20. For example, $100 × 0.20 = $20 discount, final price $80.
Q2: What's the difference between discount amount and discount rate?
A: The discount rate is the percentage (e.g., 25%), while the discount amount is the actual dollar value reduced from the price.
Q3: Can I calculate multiple discounts?
A: For multiple discounts, apply them sequentially. A 10% discount followed by a 20% discount is not the same as a single 30% discount.
Q4: How do I reverse-calculate to find the original price?
A: If you know the final price and discount rate, original price = final price / (1 - discount rate/100).
Q5: Does this calculator work for any currency?
A: Yes, though it displays results in dollars. You can mentally substitute your local currency for the dollar symbol.