Discount Calculator Guide: Calculate Savings and Final Prices Easily

How to Calculate a Discount

The core formula:

Discount = (Original Price × Discount %) ÷ 100
Final Price = Original Price - Discount

Example 1: Standard Sale Discount

Item: Jacket for $120
Discount: 25%

1. Discount = (120 × 25) ÷ 100 = 30
2. Final Price = 120 - 30 = $90

You pay $90 and save $30.

Check your math with our discount calculator.

Example 2: Double Discounts

Item: Laptop for $1,000
Sale: 20% off + extra 10% off clearance

1. First discount = (1000 × 20%) = 200
   New price = 800
2. Second discount = (800 × 10%) = 80
   Final Price = $720

Your total discount is not 30%, but 28% effective. Use the calculator to verify.

Example 3: Reverse Discount (Find Original Price)

If the final price is $70 after a 30% discount:

Original = Final ÷ (1 - Discount%)
= 70 ÷ (1 - 0.3)
= 70 ÷ 0.7
= $100

So the item originally cost $100.

Try this reverse calculation on our discount calculator.

Why Discounts Matter Beyond Shopping

• Retailers use discounts to boost volume and manage inventory
• Consumers use them to compare true deal value
• Marketers use percentage math to make offers sound better

Example: “50% off second item” often equals only 25% total savings if you buy two.

Quick Reference Table

Related Calculators

• Percentage of a Number
• Tax Calculator
• Tip Calculator with Tax
• All Calculators

In short:
Discounts are easy to understand once you know the math.
Our discount calculator handles the formulas instantly—so you can focus on saving, not counting.