Work out the sale price and total saving on Black Friday deals.
Please do not make financial decisions based on these results.
What is the Black Friday Calculator?
Work out the sale price and total saving on Black Friday deals. To use the Black Friday Calculator, enter list price, discount, sales tax, quantity; it returns final price with tax, you save, sale price before tax, and shows them instantly as you type.
Where the Black Friday Calculator fits
Work out the sale price and total saving on Black Friday deals. The main figure it returns is the Final price with tax, worked out from the values you enter.
It belongs with the other sales, discounts & pricing tools. If you are comparing options or checking a result from another angle, try the PayPal Fee Calculator, Percentage Discount Calculator or the Percent Off Calculator.
How to use the Black Friday Calculator
- Fill in the fields. You will need List price ($), Discount (%), Sales tax (%), Quantity. Use real figures from your own records where you can. Fields marked optional can stay at zero.
- Read the result. The highlighted box gives the Final price with tax, and the cards below show You save, Sale price before tax. Tables and charts break it down further.
- Test other scenarios. Results update as you type. Change one value at a time to see what drives the answer, and press Reset to go back to the defaults.
Formula and how it works
Example with real numbers
Here is the Black Friday Calculator using the default values shown in the calculator above:
Inputs
| List price ($) | 249.99 |
|---|---|
| Discount (%) | 35 |
| Sales tax (%) | 7 |
| Quantity | 1 |
Results
| Final price with tax | $173.87 |
|---|---|
| You save | $87.50 |
| Sale price before tax | $162.49 |
With these inputs the calculator returns Final price with tax: $173.87. Change any value in the calculator to see how the result moves.
What if you change one input?
Sensitivity check: raising List price ($) from 249.99 to 300 (about 20% higher) and leaving everything else as in the example above changes the results like this:
| Result | Example | After the change | Change |
|---|---|---|---|
| Final price with tax | $173.87 | $208.65 | +20% |
| You save | $87.50 | $105.00 | +20% |
| Sale price before tax | $162.49 | $195.00 | +20% |
The input that moves the result most is the one to check twice. Change it in the calculator above to test your own case.
What the results tell you
The results panel of the Black Friday Calculator reports Final price with tax, you save and sale price before tax. Compare these figures while changing one input at a time, and use the related calculators below to look at the same situation from another angle.
Method and limits. This calculator applies the formula in the section above to your inputs, in your browser; nothing you enter is stored on our servers. The result is only as accurate as the numbers you enter and the formula shown above. It is for information, not financial, tax or legal advice.
Frequently asked questions
Is the advertised discount always real?
Compare with the item’s typical price over recent weeks, not just the “was” price.
What is the difference between margin and markup?
Margin is profit as a share of the selling price; markup is profit as a share of cost. A 50% markup equals a 33% margin.
Is sales tax included?
Only where a tool has a tax field. Enter your own local rate because it varies by location.
Are the results guaranteed?
No. Results depend entirely on the numbers you enter and the formulas shown on this page. Please do not make financial decisions based on them alone; confirm important figures with a licensed professional.
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