Enter the regular price before discount

Enter the discount percentage (e.g., 20 for 20% off)

1. Calculate Sale Price from Percent Off

Find the final price after applying a percentage discount:

Alternative: Sale Price = Original Price - (Original Price × Discount % ÷ 100)

Example: $100 with 20% off = $100 × (1 - 20÷100) = $100 × 0.80 = $80

2. Calculate Discount Amount

Find how much money you save:

Example: $50 with 30% off → Discount = $50 × 30 ÷ 100 = $15 savings

Final price = $50 - $15 = $35

3. Calculate Discount Percentage

Find the discount percentage when you know original and sale prices:

Example: Original $80, Sale $60 → Discount % = [(80 - 60) ÷ 80] × 100 = 25% off

4. Calculate Original Price

Find the original price when you know sale price and discount percentage:

Example: Sale price $60 with 25% off → Original = $60 ÷ (1 - 0.25) = $60 ÷ 0.75 = $80

Example 1: 20% Off a $150 Item

Question: How much is 20 percent off $150?

Step 1 - Calculate Discount:

Discount = $150 × 20 ÷ 100 = $150 × 0.20 = $30

Step 2 - Calculate Final Price:

Final Price = $150 - $30 = $120

Answer: You save $30, pay $120

Example 2: 30% Off a $90 Purchase

Question: How do you take 30 percent off $90?

Method 1 - Traditional:

Discount = $90 × 30 ÷ 100 = $27

Sale Price = $90 - $27 = $63

Method 2 - Direct:

Sale Price = $90 × (1 - 0.30) = $90 × 0.70 = $63

Answer: Final price is $63

Example 3: Find Discount Percentage

Question: Item originally $80, now $60. What's the discount %?

Step 1 - Find Discount Amount:

Discount Amount = $80 - $60 = $20

Step 2 - Calculate Percentage:

Discount % = ($20 ÷ $80) × 100 = 0.25 × 100 = 25%

Answer: 25% off discount

Example 4: Multiple Discounts

Question: Item costs $200, first 20% off, then additional 10% off?

Step 1 - First Discount (20%):

After 20% off: $200 × 0.80 = $160

Step 2 - Second Discount (10%):

After 10% off: $160 × 0.90 = $144

Total savings: $56 (28%), Final: $144

Note: 20% + 10% ≠ 30% when applied successively

How do you calculate percent off?

To calculate percent off: (1) Multiply the original price by the discount percentage. (2) Divide by 100 to get the discount amount. (3) Subtract the discount from the original price to get the sale price. Formula: Sale Price = Original Price - (Original Price × Discount % ÷ 100).

How do you calculate 20 percent off?

To calculate 20% off: Multiply the original price by 0.20 (or divide by 5) to find the discount amount, then subtract from the original price. Example: $100 with 20% off = $100 - ($100 × 0.20) = $100 - $20 = $80.

How much is 10 percent off?

10% off means you save 10% of the original price. To calculate: Divide the price by 10. Example: 10% off $50 = $5 discount, final price = $45. Quick method: Move decimal one place left ($50.00 becomes $5.00 discount).

How to figure out percentage off?

To figure out percentage off when you know original and sale prices: (1) Subtract sale price from original price to get discount amount. (2) Divide discount by original price. (3) Multiply by 100. Formula: Discount % = (Original Price - Sale Price) ÷ Original Price × 100.

How do you take 30 percent off a price?

To take 30% off: Multiply the original price by 0.30 to find the discount, then subtract from original. Alternative: Multiply original price by 0.70 directly to get final price. Example: $100 × 0.70 = $70 (30% off).

What is the formula for percent off?

The percent off formula is: Sale Price = Original Price × (1 - Discount% / 100). Or: Sale Price = Original Price - (Original Price × Discount% / 100). To find discount amount: Discount Amount = Original Price × Discount% / 100.

How much is 50 percent off?

50% off means you pay half the original price. Simply divide the price by 2. Example: 50% off $80 = $40 final price (you save $40). This is the easiest discount to calculate mentally.

Can you stack multiple discounts?

Yes, but successive discounts don't add up directly. Apply each discount to the already-reduced price. Example: 20% off, then 10% off $100 = $100 × 0.80 = $80, then $80 × 0.90 = $72 (28% total, not 30%).

1. Mental Math Shortcuts

10% = divide by 10 | 20% = divide by 5 | 25% = divide by 4 | 50% = divide by 2 | 75% = multiply by 0.25. Master these for quick calculations while shopping.

2. Compare Multiple Discounts

Don't assume bigger percentage = better deal. $100 item at 50% off ($50) might not beat $80 item at 30% off ($56) depending on original quality and value.

3. Watch for Marketing Tricks

"50% off, then 30% off" ≠ 80% off. Successive discounts multiply (0.50 × 0.70 = 0.35 = 65% off). Always calculate the final price.

4. Calculate Price Per Unit

When comparing products with different discounts, calculate final price per unit (ounce, pound, etc.) to find true value, not just percentage off.

5. Verify "Original" Prices

Some retailers inflate "original" prices to make discounts seem bigger. Research actual market price before assuming you're getting a great deal.

6. Add Tax Back In

Remember to add sales tax to discounted prices for true out-of-pocket cost. A $80 discounted item with 8% tax = $86.40 final cost.