How do you calculate the sale price after a percentage off?

Multiply the original price by (1 - discount% / 100). For example, 25% off $120: $120 x 0.75 = $90. The amount you save is the original price multiplied by the discount percentage divided by 100: $120 x 0.25 = $30. The sale price plus savings always equals the original price. Common discount multipliers to memorise: • 10% off: multiply by 0.90 • 15% off: multiply by 0.85 • 20% off: multiply by 0.80 • 25% off: multiply by 0.75 • 30% off: multiply by 0.70 • 50% off (half price): multiply by 0.50 • 75% off: multiply by 0.25

How do I find what percentage off a sale price is?

Use the Find % off mode and enter the original price and the sale price. The formula is: % Off = (Original - Sale) / Original x 100. For example, an item originally $120 on sale for $90: (120 - 90) / 120 x 100 = 25% off. This is useful when a tag shows the sale price but not the discount percentage, or when comparing deals across different stores. Real-world uses: • Comparing two sale prices on the same item at different retailers • Verifying a coupon's claimed discount matches the actual price reduction • Working out the markdown percentage on a clearance rack • Checking whether a Black Friday price is actually better than the pre-sale price • Verifying subscription discounts: if annual plan is $79 vs monthly x 12 = $120, the saving is (120-79)/120 x 100 = 34.2% off

Does the discount apply before or after tax?

In virtually all retail contexts, the discount percentage applies to the pre-tax price, and sales tax is then calculated on the discounted price. This calculator follows that convention: enter the original price (before tax), the discount percentage, and optionally the sales tax rate — the calculator shows the sale price before tax, then the total after tax is added. This is the legally correct method in most US states and other jurisdictions. Key tax calculation sequence: • Start: original price (e.g. $120) • Apply discount: $120 x 0.75 = $90 sale price • Apply tax to discounted price: $90 x 1.08875 = $97.99 total • The tax is never applied to the savings amount — only to what you actually pay • Some online retailers apply state tax to the pre-discount price — this is incorrect in most jurisdictions and inflates the tax you owe • Coupon codes applied at checkout typically reduce the taxable amount, reducing tax alongside the price

What is the difference between 25% off and paying 25% of the price?

These are opposite meanings that are easy to confuse. 25% off means you remove 25% from the price — you pay 75% of the original. Paying 25% of the price means the price is reduced to just one-quarter — you are saving 75%. A 25% off deal is far less generous than paying 25% of the price, even though the numbers look similar. Clear comparison on a $200 item: • 25% off: you pay $200 x 0.75 = $150, saving $50 • Paying 25% of price: you pay $200 x 0.25 = $50, saving $150 • 10% off vs paying 10%: pay $180 vs pay $20 — very different • Retailers always advertise in % off (what you save) not % of price (what you pay) • When a retailer says items are priced at 20% of original, that means 80% off — an extraordinary clearance discount

How do two successive discounts combine?

Two successive discounts do not add up — they compound, resulting in a smaller total saving than the sum of the two percentages. For example, 20% off followed by an additional 10% off does not equal 30% off. The second discount applies to the already-reduced price. This is a well-known retail psychology technique — two discount stickers often look more attractive than a single equivalent discount. How successive discounts work on a $200 item: • 20% off first: $200 x 0.80 = $160 • Then 10% off that: $160 x 0.90 = $144 • Total saving: $56, which is 28% off the original — NOT 30% • Formula for two successive discounts p and q: effective% = 100 - (1 - p/100) x (1 - q/100) x 100 • 20% + 10%: effective = 100 - 0.80 x 0.90 x 100 = 100 - 72 = 28% off • Always calculate the final price, not the sum of discounts, when evaluating stacked deals

Percentage Off Calculator — Sale Price & Savings

This Percentage Off Calculator finds your sale price and savings amount instantly. Enter the original price and the discount percentage — the calculator shows the sale price, how much you save, and optionally the total price after sales tax. Use the Find % off mode to go in reverse: enter the origin...

% OFF CALCULATOR

Original Price

Discount (% Off)

Sales Tax — optional

Shows final price after tax is added to the discounted price

$120.00 with 25% off

$90.00

You save $30.00

QUICK EXAMPLES

LIVE DIAGRAM

SALE PRICE AFTER 25% OFF

$90.00

YOU SAVE

$30.00

ORIGINAL

$120.00

PRICE BREAKDOWN

PAY $90.00

SAVE $30.00

Pay: $90.00 (75.0%)

Save: $30.00 (25.0%)

SALE PRICE

$90.00

YOU SAVE

$30.00

% OFF

25%

MULTIPLIER

75% of orig

Live diagram · updates as you type

Created with❤️byeaglecalculator.com

SAVINGS AT EVERY DISCOUNT LEVEL — $120.00 ITEM

ORIGINAL PRICE: $120.00 · YOUR DISCOUNT: 25% OFF

% OFF	SALE PRICE	YOU SAVE	LABEL
5%	$114.00	$6.00	5% off
10%	$108.00	$12.00	10% off
15%	$102.00	$18.00	15% off
20%	$96.00	$24.00	20% off
25% ←	$90.00	$30.00	25% off
30%	$84.00	$36.00	30% off
40%	$72.00	$48.00	40% off
50%	$60.00	$60.00	Half price
60%	$48.00	$72.00	60% off
70%	$36.00	$84.00	70% off
75%	$30.00	$90.00	75% off

HOW TO USE

1
Select your mode: Find sale price (you know the original price and discount %) or Find % off (you know the original and sale price).
2
In Find sale price mode: enter the original price and the discount percentage. The sale price and savings update instantly.
3
Optionally enter your local sales tax rate to see the total price after tax is added to the discounted price.
4
In Find % off mode: enter the original price and the sale price. The calculator shows the percentage discount and total savings.
5
Review the savings reference table to see your item priced at every common discount level from 5% to 75% off — your current discount is highlighted.

WORKED EXAMPLE

Example 1: Original $120, 25% off. Sale price = $120 x 0.75 = $90.00. You save $30.00. With 8.875% tax: $90 x 1.08875 = $97.99 total. Example 2: Original $79.99, 30% off. Sale price = $79.99 x 0.70 = $55.99. You save $24.00. Example 3 (Find % off): Original $120, sale price $90. % off = (120-90)/120 x 100 = 25% off.

REFERENCE FORMULAS

FORMULA REFERENCE TABLE

NAME	FORMULA	DESCRIPTION
Sale Price	Sale = Original x (1 - Discount% / 100)	Multiply by the complement of the discount percentage
You Save	Savings = Original x (Discount% / 100)	The absolute amount removed from the price
% Off (find)	% Off = (Original - Sale) / Original x 100	Given original and sale price, find the percentage discount
With Tax	Total = Sale x (1 + Tax% / 100)	Add sales tax to the discounted price, not the original
Successive discounts	Effective% = 100 - (1-p/100) x (1-q/100) x 100	Two stacked discounts p and q — they do not simply add

FREQUENTLY ASKED QUESTIONS

RELATED CALCULATORS

Percentage Decrease Calculator

Calculate instantly →

Percentage Markup Calculator

Calculate instantly →

Percentage Increase Calculator

Calculate instantly →

What is X% of Y Calculator

Calculate instantly →

MORE PERCENTAGE CALCULATORS

Grade Calculator

Calculate instantly →

Percentage Increase Calculator

Calculate instantly →

X is What Percent of Y Calculator

Calculate instantly →

Percentage Markup Calculator

Calculate instantly →

Percentage Difference Calculator

Calculate instantly →

Percentage Margin Calculator

Calculate instantly →

Percentage Decrease Calculator

Calculate instantly →

Discount Calculator

Calculate instantly →

Percentage Change Calculator

Calculate instantly →

Tip Calculator

Calculate instantly →

What is X% of Y Calculator

Calculate instantly →

What is 5% of 1000?

Calculate instantly →

What is 5% of 250?

Calculate instantly →

What is 5% of 25?

Calculate instantly →

What is 5% of 150?

Calculate instantly →

What is 5% of 500?

Calculate instantly →

What is 5% of 20?

Calculate instantly →

What is 5% of 200?

Calculate instantly →

What is 10% of 20?

Calculate instantly →

Was this calculator helpful?

Last updated: April 25, 2026 · Formula verified by EagleCalculator team · Eagle-eyed accuracy for every calculation.