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Discount Calculator

Calculate sale prices with single or stacked discounts.

How to Use the Discount Calculator

Our discount calculator makes it easy to find exactly how much you'll save on any purchase. It supports single discounts and multiple stacked discounts. Follow these steps:

  1. Enter the Original Price: Input the item's original price before any discounts are applied (the MRP or list price).
  2. Enter the Discount Percentage: Input the first discount percentage being offered (e.g., 20 for a 20% off sale).
  3. Add Stacked Discounts (Optional): If there are additional discounts (e.g., "extra 10% off on top"), click the "Add Stacked Discount" button and enter each additional discount. You can add as many layers as needed.
  4. View Results: The calculator instantly shows your total savings, the final price you'll pay, the effective total discount percentage, and a step-by-step breakdown of how each discount was applied.

How Stacked Discounts Work

Stacked (or successive/cascading) discounts are a common pricing strategy where multiple discount percentages are applied one after the other. The key thing to understand is that stacked discounts are NOT additive — each subsequent discount is applied to the already-reduced price, not the original price.

Example: 20% + 10% ≠ 30%

Consider a product priced at ₹1,000 with a "20% off + extra 10% off" deal:

The mathematical formula for the effective discount of two stacked percentages (a% and b%) is:

Effective Discount = a + b − (a × b / 100)

For 20% + 10%: 20 + 10 − (20 × 10 / 100) = 30 − 2 = 28%

Smart Shopping Strategies

Understanding discounts can help you make better purchasing decisions:

Types of Discounts Explained

Frequently Asked Questions

Only if you buy exactly two items. BOGO means two items for the price of one (50% discount on the pair). If you only need one item, BOGO offers no discount.
Mathematically, no. 20% off then 10% off gives the same result as 10% off then 20% off, because multiplication is commutative.
Use: Original Price = Final Price / (1 − Discount/100). Example: ₹720 after 20% off = ₹720 / 0.80 = ₹900 original.
Percentage discounts are better for expensive items. Flat discounts are better for cheap items. 30% off ₹1000 = ₹300 saved, same as ₹300 flat off. But on a ₹2000 item, 30% off saves ₹600.
The effective discount approaches but never reaches 100%. Even ten 50% discounts give 99.9%, not 100%. Formula: Effective = 1 − (1 − d/100)^n.
RA

Written & Reviewed by Romik Amreliya

Software Engineer & Data Analyst. Dedicated to building precise, privacy-first web calculators based on standardized financial and medical algorithms. All tools and content undergo rigorous testing against industry-standard benchmarks.

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Sources & References:

  • Investopedia - Financial education, formulas, and terminology definitions.
  • Standard banking amortization formulas for compound interest and loan schedules.
  • Consumer Financial Protection Bureau (CFPB) - Guidelines on credit cards, mortgages, and personal loans.
  • Calculations are based on universally accepted financial mathematics; actual rates may vary by institution.
Financial Disclaimer: This discount calculator is provided for educational and informational purposes only. Actual discounts may vary based on store policies, applicable taxes, minimum purchase requirements, and terms and conditions. Always verify the final price with the retailer before making a purchase.