Discount Calculator

Perform shopping discount calculations easily and quickly. Calculate discounted price from original price and discount rate, find discount rate from prices, calculate original price from discounted price, and compute multi-stage (stacked) discounts in real-time.

Calculation type

Original Price ($)

Discount Rate (%)

Original Price ($)

Discounted Price (Sale Price) ($)

Discount Rate (%)

Original Price ($)

1st Discount Rate (%)

2nd Discount Rate (%)

3rd Discount Rate (%, optional)

Discounted Price (Final)

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GUIDE

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Understanding Discount Basics and Discount Rates

A discount is a reduction from the original price by a certain amount or percentage. The discount rate represents how much is reduced as a percentage of the original price, and the discounted price is the final price after applying the discount. The basic formula is Discounted Price = Original Price × (1 - Discount Rate/100). For example, a $1,000 item with a 30% discount has a discount amount of $300 and a final price of $700. The savings equal the original price minus the discounted price.

Calculating Discounted Price from Original Price and Rate

This is the most common shopping calculation. Knowing the original price and discount rate, the discounted price is Original Price × (1 - Discount Rate/100). A $2,000 coat at 40% off costs $1,200 (saving $800). A $500 pair of shoes at 25% off costs $375. Even at the same discount rate, a higher original price yields larger absolute savings, so discounts on expensive items are more favorable in absolute terms.

Calculating Discount Rate from Prices

When an ad says "was $1,000, now $700," use Discount Rate = ((Original - Discounted) / Original) × 100. $1,000 sold at $700 is a 30% discount. $800 sold at $560 is also 30%. Computing the actual rate lets you objectively compare deals — useful when one item is 20% off and another 25% off but absolute prices differ.

Finding the Original Price (Reverse Calculation)

Knowing the discounted price and rate, recover the original price with Original = Discounted / (1 - Discount Rate/100). A $700 sale item marked "30% off" had an original price of $1,000. A $1,350 item with a "10% off" sticker was originally $1,500. This verifies whether an advertised discount is genuine.

How Multi-Stage (Stacked) Discounts Work

Multi-stage discounts apply several discounts in sequence. The key point: you cannot simply add the rates. Each stage applies to the price after the previous discount. A $1,000 item at 30% then an extra 10% becomes $700, then $630 — that is 37% off in total, not 40%. A department-store "30% off + extra 10% for VIP" is a 37% discount, not 40%.

Comparing Discount Rates Wisely

Judging by discount rate alone can cost you. Consider both absolute and relative price. Item A at $2,000 with 50% off is $1,000; item B at $1,200 with 20% off is $960 — B is cheaper despite a lower rate. Also beware quantity-discount illusions. When comparing, convert to per-unit price, and wait for known sale cycles rather than rushing.

Spotting Fake or Exaggerated Discounts

Some sellers inflate discount rates. Inflated original price: "$5,000, now 70% off at $1,500" when the real market value is ~$2,000. Double pricing: a $800 item shown with a struck-through "$1,200 (33% off)" though it was never sold at $1,200. To detect: check 6-month price history on comparison sites, compare market prices across multiple stores, and report false advertising to consumer agencies.

Maximizing Online Shopping Discounts

Stack coupons: a $2,000 item with 20% + 10% + 5% coupons ends at $1,368 (31.6% total off). Use points/credits on top of coupon prices. Take advantage of card-issuer promotions for an extra 5-10%. Time-limited flash sales have high rates but limited stock — add items to cart in advance. Use price-tracking tools to get alerts when prices drop below your target.

Frequently asked questions

How do multi-stage discounts work?

You cannot add the rates. Each stage applies to the price after the previous discount. 30% then 10% is 37% off, not 40% (0.7 × 0.9 = 0.63).

Can I find the original price from the discounted price and rate?

Yes. Original = Discounted / (1 - Rate/100). A $700 item marked 30% off had an original price of $1,000.