What a discount really costs you
A discount calculator does the obvious job — turning a list price and a percentage off into the final sale price and the amount saved — but the more useful question for a business owner is what that discount does to profit. Knocking 20% off a price does not knock 20% off your profit; it can wipe out far more, because the discount comes entirely out of your margin.
To use the tool, enter the original price and the discount percentage. It shows the amount saved and the final price a customer pays. If you also enter your unit cost, it reveals the part most calculators hide: your remaining profit and margin after the discount. A product with a 40% margin that you discount by 20% can see its profit more than halved — seeing that in numbers helps you decide whether a promotion is worth running.
You can also work backwards. If you know the sale price and the original price, the tool tells you the effective discount percentage — handy for checking a supplier deal or comparing offers. And for stacked or successive discounts, remember they multiply rather than add: 10% then a further 10% is a 19% total discount, not 20%.
Discounts are a powerful sales lever, but only when you know the margin you are giving away. Tallium tracks the true cost of every item, so when you run a promotion it shows the real profit impact and keeps your books and tax accurate at the discounted price.
Frequently asked questions
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