Percent Off Calculator
Calculate discounts and final prices instantly. Enter the original price and discount percentage to find out how much you save and the final sale price. Works for any discount from 5% to 75% off. Perfect for shopping, sales calculations, and pricing discounts.
Calculate Percent Off
Original Price
Discount Percentage
Percent Off Formulas
How to Calculate Percent Off
1. Calculate Discount Amount:
\( \text{Discount Amount} = \text{Original Price} \times \frac{\text{Percent Off}}{100} \)
Multiply the original price by the discount percentage and divide by 100. For 20% off $100: $100 × 20 ÷ 100 = $20 discount.
2. Calculate Final Price:
\( \text{Final Price} = \text{Original Price} - \text{Discount Amount} \)
Subtract discount from original price. For $100 with $20 discount: $100 - $20 = $80 final price.
3. Combined Formula (One Step):
\( \text{Final Price} = \text{Original Price} \times \left(1 - \frac{\text{Percent Off}}{100}\right) \)
Alternative: multiply original price by (1 - decimal discount). For 20% off $100: $100 × (1 - 0.20) = $100 × 0.80 = $80.
4. Decimal Method:
\( \text{Final Price} = \text{Original Price} \times (100\% - \text{Discount}\%) \div 100 \)
Calculate what percentage you're paying. 20% off means paying 80%. For $100: $100 × 80 ÷ 100 = $80. Quick mental math: 20% off = 0.80 multiplier.
Common Discount Quick Reference
Frequently Asked Questions
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. Formula: Final Price = Original Price - (Original Price × Percent ÷ 100). Example for 20% off $100: $100 × 20 ÷ 100 = $20 discount, so final price = $100 - $20 = $80. Quick method: Convert percentage to decimal (20% = 0.20), then multiply: $100 × 0.20 = $20 discount.
How do you take 20% off a price?
To take 20% off a price, multiply the price by 0.20 to find the discount, then subtract from original. Example: $50 item with 20% off: $50 × 0.20 = $10 discount, final price = $50 - $10 = $40. Alternative: Multiply by 0.80 (paying 80%): $50 × 0.80 = $40 directly. Mental math tip: 20% is 1/5, so divide by 5: $50 ÷ 5 = $10 discount. Common 20% off results: $25→$20, $50→$40, $75→$60, $100→$80, $150→$120.
How much is 20 percent off?
20 percent off means you save $20 for every $100 of original price. On a $100 item, 20% off saves $20 (pay $80). On $50, save $10 (pay $40). On $200, save $40 (pay $160). To calculate: multiply price by 0.20 for savings amount. 20% off is equivalent to paying 80% of original price. In money terms: $10 item→save $2, $25 item→save $5, $75 item→save $15, $150 item→save $30. Use formula: Savings = Price × 0.20.
How to calculate 10 percent off?
10 percent off is easiest to calculate mentally: divide price by 10. For $80 item: $80 ÷ 10 = $8 discount, pay $72. Formula: Discount = Price × 0.10, Final Price = Price × 0.90. Examples: $20→$18 (save $2), $50→$45 (save $5), $100→$90 (save $10), $250→$225 (save $25). Quick tip: Move decimal point left one place for 10% ($45.00→$4.50 discount). 10% off means paying 90% of original price. Very common in retail sales and coupons.
How much is 50 percent off?
50 percent off means half price - you pay exactly 50% of the original price. Simplest discount to calculate: divide by 2. Examples: $100→$50, $80→$40, $60→$30, $40→$20, $20→$10. Formula: Final Price = Original Price ÷ 2, or Original Price × 0.50. 50% off is the same as "half off" or "buy one get one free" pricing. You save exactly half the original price. Mental math: Just cut the price in half. On $75 item: $75 ÷ 2 = $37.50 final price, saving $37.50.
How to calculate 30 percent off?
For 30% off, multiply price by 0.30 to find discount, or multiply by 0.70 for final price. Example: $100 item: Discount = $100 × 0.30 = $30, Final = $100 - $30 = $70. Direct method: $100 × 0.70 = $70. Mental math: 30% = 10% × 3, so find 10% then triple it. For $100: 10% = $10, so 30% = $30. Common results: $50→$35, $100→$70, $150→$105, $200→$140. 30% off means paying 70% of original price. Popular clearance sale percentage.
How do you figure percentage off?
To figure percentage off, use these steps: (1) Convert percentage to decimal by dividing by 100 (25% = 0.25). (2) Multiply original price by decimal to get discount amount. (3) Subtract discount from original price. Example for 15% off $60: 15% = 0.15, discount = $60 × 0.15 = $9, final = $60 - $9 = $51. Alternative: Multiply by (100% - discount%). For 15% off, pay 85%: $60 × 0.85 = $51. Verify: savings ($9) + final price ($51) should equal original ($60). Works for any percentage from 1% to 99%.
How to take percentage off a price?
To take a percentage off a price: First method: Calculate discount = price × (percentage ÷ 100), then subtract from price. Second method (faster): Multiply price by (1 - percentage/100). For 25% off $80: Method 1: $80 × 25 ÷ 100 = $20 discount, $80 - $20 = $60. Method 2: $80 × 0.75 = $60. Quick multipliers: 10% off = ×0.90, 15% off = ×0.85, 20% off = ×0.80, 25% off = ×0.75, 30% off = ×0.70, 40% off = ×0.60, 50% off = ×0.50. Memorize these for mental math.