Discount Calculator

About Discount Calculator

Welcome to the Discount Calculator, your complete tool for calculating sale prices, stacked discounts, and BOGO deals. Whether you are shopping for the best deals, comparing prices, or planning your budget, this calculator shows you exactly how much you will save with a visual breakdown of your savings.

How to Calculate Discounts

Percentage Discount Formula

The most common type of discount is a percentage off the original price:

Example: A $80 jacket with 25% off:

• Discount Amount = $80 × 0.25 = $20
• Sale Price = $80 - $20 = $60

Fixed Amount Discount

Some discounts are a fixed dollar amount off:

Example: A $50 item with $15 off coupon = $35

Understanding Stacked Discounts

Stacked discounts apply sequentially, not additively. This is important to understand:

Example of Stacked Discounts:

• Original Price: $100
• First Discount (20% off): $100 × 0.80 = $80
• Second Discount (10% off $80): $80 × 0.90 = $72
• Effective Total Discount: 28% (not 30%)

BOGO Deals Explained

BOGO (Buy One Get One) deals come in various forms:

Sales Tax Considerations

Sales tax is calculated on the discounted price, not the original price. This means you save on tax too!

Example with Tax:

• Original: $100 with 8% tax = $108 total
• With 20% discount: $80 + $6.40 tax = $86.40 total
• Total Savings: $21.60 (includes $1.60 tax savings)

Discount Calculation Tips

Quick Mental Math Shortcuts

• 10% off: Move decimal point one place left ($50 → $5 discount)
• 20% off: Calculate 10% and double it
• 25% off: Divide by 4
• 50% off: Divide by 2
• 15% off: Calculate 10% + half of that

Comparing Discounts

When comparing deals, always calculate the final price:

• $100 item with 30% off = $70
• $90 item with 20% off = $72
• The first deal is better despite lower original price!

Frequently Asked Questions

How do I calculate the sale price after a discount?

To calculate the sale price: multiply the original price by the discount percentage, then subtract that amount from the original price. For example, a $100 item with 20% off: $100 × 0.20 = $20 discount, so the sale price is $100 - $20 = $80.

How do stacked discounts work?

Stacked discounts apply sequentially, not additively. The second discount applies to the already-reduced price from the first discount. For example, 20% off followed by 10% off on a $100 item: First discount gives $80, then 10% off $80 = $8, final price is $72.

What is BOGO and how is it calculated?

BOGO stands for "Buy One Get One" and refers to promotions where buying a certain quantity earns you free items. For example, "Buy 2 Get 1 Free" means for every 3 items, you only pay for 2. The effective discount depends on how many items you purchase.

Should I apply tax before or after the discount?

Sales tax should be applied after the discount, on the discounted price. This means you save on both the item price and the tax. Our calculator automatically applies tax to the final discounted price.

How do I calculate my total savings including tax?

Total savings includes both the discount amount and the tax you would have paid on the full price. If a $100 item is 20% off with 10% tax, you save $20 on the item plus $2 on tax (10% of $20), totaling $22 in savings.

Common Discount Scenarios

Seasonal Sales

• Black Friday: Typically 20-50% off
• End of Season: 40-70% off clearance
• Holiday Sales: 15-30% off

Coupon Stacking Strategies

1. Apply store discount first (usually larger)
2. Then apply manufacturer coupon
3. Finally, use cashback or rewards

Additional Resources

• Discounts and Allowances - Wikipedia
• Sales Tax - Wikipedia

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• Discount Calculator
• Discount Factor Calculator
• Percent Off Calculator Featured