Discount Calculator
Calculate the final price and savings after applying a percentage discount. Or enter the original and discounted prices to find out what percentage was taken off. Useful for quoting, early payment terms, and trade pricing.
Frequently asked questions
How do I calculate a percentage discount?
Multiply the original price by the discount percentage and divide by 100. For example, 20% off £150: £150 × 20 ÷ 100 = £30 discount. Subtract from original: £150 − £30 = £120 final price. Or more quickly: multiply the original by (1 − discount / 100). £150 × 0.80 = £120.
How do stacked discounts work?
Stacked discounts are applied sequentially, not additively. A 20% discount followed by a 10% discount is NOT a 30% total discount. Example: £100 after 20% off = £80. Then 10% off £80 = £72. The effective combined discount is 28%, not 30%. To calculate the combined effect: multiply the discount factors together — 0.80 × 0.90 = 0.72, so 28% off in total.
Should I offer early payment discounts on invoices?
Early payment discounts (e.g. 2% off if paid within 10 days) can improve cash flow but effectively reduce your revenue. A 2% discount on a 30-day invoice equates to an annualised cost of capital of roughly 24%. Only offer them if cash flow is tight or if you have customers with a history of late payment. InvoiceAdept lets you add discount lines directly to invoices.
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Add discounts directly to your invoices
InvoiceAdept lets you add percentage or fixed discounts to any invoice line item, send automated reminders, and accept card or bank transfer payments online.
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