Use this sales revenue calculator to calculate revenue from your unit price, quantity sold, and percentage discount. It shows revenue before the discount, revenue after the discount, and the total dollar value of the discount. These figures measure sales income—not profit.
How to use the sales revenue calculator
- Enter the Price: use the selling price per item before the discount. The calculator displays dollar amounts; exclude sales tax if you want to measure revenue excluding tax collected from customers.
- Enter the Quantity: use the number of pieces sold, or the number you expect to sell during your forecast period.
- Enter the Discount: enter a percentage, such as 20 for 20%. Enter 0 if no discount applies. A standard price reduction should be between 0% and 100%.
The calculator applies one price and one discount rate to the entire quantity. If products have different prices or discounts, calculate each group separately and add their revenue totals. Use the same time period for every group.
If your price already includes the discount, enter 0 in the Discount field to avoid deducting it twice.
Sales revenue formula and worked example
To calculate sales revenue before any discount, multiply the unit price by the quantity sold. For discounted sales, reduce that total by the discount percentage:
Revenue before discount = Price × Quantity
Revenue after discount = Price × Quantity × (1 − Discount ÷ 100)
Total discount = Price × Quantity × (Discount ÷ 100)
Here, Discount is the percentage entered in the calculator. For a 20% discount, use 20—not 0.20—in these formulas.
Example: selling 100 items at $50 with a 20% discount
| Result | Calculation | Amount |
|---|---|---|
| Revenue before discount | $50 × 100 | $5,000 |
| Revenue after discount | $50 × 100 × (1 − 20 ÷ 100) | $4,000 |
| Discount | $50 × 100 × (20 ÷ 100) | $1,000 |
The discounted selling price is $40 per item. Selling 100 items therefore generates $4,000 in revenue, which is $1,000 less than selling the same quantity at the original price.
How to interpret your results
- Revenue before discount is the undiscounted value of the quantity entered. It is a comparison figure, not a guarantee that customers would buy that quantity at full price.
- Revenue after discount is the sales amount after applying the entered price reduction. With no discount, it equals revenue before discount.
- Discount is the total dollar reduction across all units—not the reduction per item and not a business expense calculation.
Although useful as a simple net sales calculator for discounts, this tool does not separately deduct returns, allowances, or other adjustments. Revenue after discount is therefore not necessarily your final accounting net sales figure. It also does not account for when customers pay.
Will a discount increase sales revenue?
A discount reduces revenue per unit. To increase total revenue, it must generate enough additional sales to offset that reduction. The calculator does not predict customer demand; change the quantity to test realistic sales scenarios.
In the example above, reducing the price from $50 to $40 requires selling 125 items instead of 100 to maintain $5,000 in revenue:
Required quantity = Target revenue ÷ Discounted unit price = $5,000 ÷ $40 = 125 items
That is a 25% increase in units sold to offset a 20% price reduction. Matching revenue does not necessarily preserve profit, because supplying the extra 25 items may increase costs.
Use this comparison when planning promotions, evaluating markdowns, or setting volume targets. For other price-reduction calculations, use the discount calculator.
Is your sales revenue enough to make a profit?
There is no universal “good” sales revenue figure. Your sales must cover product costs, fulfillment, transaction fees, labor, and other operating expenses before the business earns a profit.
Review your profit margin alongside revenue. Separate variable costs, which change with activity, from fixed costs, which generally remain stable within a relevant operating range.
For the next step, use the break-even point calculator to estimate the sales needed to cover costs, or the margin of safety calculator to assess how far sales can fall before reaching break-even. The margin after discount calculator helps evaluate how a promotion affects profitability rather than revenue alone.
Build a pricing calculator for your customers
If your business quotes orders by unit price, quantity, and volume discount, Calcopolis lets you build a customized pricing calculator for your website so customers can estimate order values before requesting a quote.