Discount / Percent Off

1. Enter the **Original Price** of the item (e.g., $149.99).
2. Enter the **Discount Rate** as a percentage (e.g., 30 for 30% off).
3. Click **Calculate** — the calculator instantly displays your **Savings** and **Sale Price**.
4. Review the breakdown: dollar amount saved and the final price you owe.
5. Optionally adjust either input to compare different discount scenarios side by side.

Savings = Original Price × (Discount Rate / 100)
Sale Price = Original Price − Savings
— or equivalently —
Sale Price = Original Price × (1 − Discount Rate / 100)

• Original Price — The full retail or listed price of the item before any discount is applied, in your chosen currency.
• Discount Rate — The percentage being taken off the original price (e.g., enter 25 for a 25% discount).
• Savings — The dollar (or currency) amount you save, calculated as Original Price × (Discount Rate ÷ 100).
• Sale Price — The final amount you pay after the discount, calculated as Original Price − Savings.

Savings = $220.00 × (35 ÷ 100) = $220.00 × 0.35 = $77.00
Sale Price = $220.00 − $77.00 = $143.00

Result: You save **$77.00** and pay a final price of **$143.00**.

The calculator returns two key numbers: your dollar savings ($77.00) and your sale price ($143.00). The dollar savings tells you exactly how much money stays in your pocket, while the sale price is what you hand over at checkout. Always verify the result against the retailer's receipt, as additional taxes, fees, or stacked coupons can alter the final amount charged. Results are estimates based purely on the inputs provided.

Understanding Discounts

What Is a Percentage Discount?

A percentage discount reduces the listed price of a product or service by a specified proportion. A 20% discount on a $100 item means the retailer is absorbing $20 of the price, so you pay $80.

Why Retailers Offer Discounts

Discounts serve multiple business purposes: clearing seasonal inventory, attracting new customers, rewarding loyalty, and stimulating impulse purchases. Common types include:

• Percentage-off discounts (e.g., 30% off) — the most common format.
• Fixed-amount discounts (e.g., $10 off) — a flat reduction regardless of price.
• Buy-one-get-one (BOGO) — effectively a 50% discount per unit when buying two.
• Tiered discounts — larger discount rates at higher spending thresholds.

Stacking Discounts

If two percentage discounts are applied sequentially (e.g., 20% off, then an additional 10% off the already-reduced price), they do not add up simply. A 20% discount followed by a 10% discount yields a combined saving of 28%, not 30%, because the second discount is applied to the already-reduced price:

Combined Discount = 1 − (1 − 0.20) × (1 − 0.10) = 1 − 0.72 = 28%

Back-Calculating the Original Price

If you know the sale price and the discount rate, you can reverse-engineer the original price:

Original Price = Sale Price ÷ (1 − Discount Rate / 100)

For example, if you paid $75 after a 25% discount: Original Price = $75 ÷ 0.75 = $100.

Sales Tax Reminder

Most jurisdictions apply sales tax after the discount is deducted, meaning tax is calculated on the sale price, not the original price. This further reduces your effective out-of-pocket cost compared to paying full price with the same tax rate.

• **Confusing discount rate with markup rate** — a 50% markup followed by a 50% discount does not return to the original price; the base changes between the two calculations.
• **Adding sequential discounts directly** — two separate 15% discounts do not equal 30% off; you must apply them one after the other to get the true combined reduction (~27.75%).
• **Forgetting sales tax** — the calculator gives the pre-tax sale price; always add applicable sales tax to determine total cash outlay.
• **Entering the discount as a decimal instead of a percentage** — enter 25, not 0.25, for a 25% discount in the Discount Rate field.
• **Using the discounted price as the base for a second calculation** — when reversing to find the original price, always divide the sale price by (1 − rate), not multiply.