What is 20% off $80.00?
To find it, multiply the original price $80 by 20 then divide by 100. The discount is $16. Subtract $16 from the original price $80 to get $64 as the sale price.
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Inputs
Enter the original price before discount
% Enter discount percentage (0-100)
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Results
Amount you save with the discount
Price you pay after discount
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Calculate 20% off $80 → Final Price: $64 | Save $16 (20% discount) | Easy calculator shows 20 off $80 = $64 | Learn how to calculate percentage discounts instantly. To find any discount, just use our Discount Calculator above.
Percent Off Formulas
To calculate discount, use these formulas:
Basic Formulas
Practical Example with Your Values
Let's apply these formulas to calculate 20% off $80:
Step 1: Calculate the amount you save using formula (a):
Amount Saved = $80 × 20% ÷ 100
Amount Saved = $80 × 0.2
Amount Saved = $16
Step 2: Calculate the final price using formula (b):
Sale Price = $80 - $16
Sale Price = $64
Alternative One-Step Formula
You can also calculate the sale price directly by multiplying the original price by the complement of the discount percentage:
Applying this to your calculation:
Sale Price = $80 × (1 - 20% ÷ 100)
Sale Price = $80 × (1 - 0.2)
Sale Price = $80 × 0.8
Sale Price = $64
Real-World Application
For everyday purchases like the $80 item in this example, you can often do the calculation mentally. Think of 20% as a decimal (0.2). Multiply $80 × 0.2 = $16 saved. Then subtract: $80 - $16 = $64 final price.
Frequently Asked Questions
What's 20% off $80?
A 20% discount on $80 saves you $16. The final price is $64.
What's the final price of $80 when discounted $16?
Using formula (b): Sale Price = Original Price - Amount Saved
Sale Price = 80 - 16
Sale Price = $64
You will pay $64 for an item originally priced at $80 with a 20% discount.
16 is what percent off 80 dollars?
Rearranging formula (a): Discount % = (Amount Saved ÷ Original Price) × 100
Discount % = (16 ÷ 80) × 100
Discount % = 0.2 × 100
Discount % = 20%
Is sales tax calculated before or after the 20% discount?
Sales tax is always calculated after the discount is applied. For your $80 purchase with 20% off, you first calculate the discounted price ($64), then apply the sales tax to that amount.
For example, with an 8% sales tax: $64 × 1.08 = $69.12. This means you save on both the purchase price and the tax amount, since tax is calculated on the lower discounted price rather than the original $80.