Pricing calculators for discounts, markup, and margin

Recommended calculators

Popular

Discount calculator

Calculate the final price after a percentage discount.

 Shopping

Sale price calculator

Work out sale prices from an original price and discount.

 Business

Markup calculator

Calculate selling price from cost and markup %.

 Business

Margin calculator

Calculate profit margin % from cost and selling price.

 Business

Markup vs margin converter

Convert between markup % and margin %.

 Core

Add/Subtract a percentage

Quickly apply percentage increases/decreases to prices.

 Business

Cost from margin

Find maximum cost price to hit your target margin.

 Business

Break-even calculator

Estimate how many units you need to sell to cover fixed costs.

 Compare

Percentage change

Old to new percentage increase/decrease for prices and costs.

 Compare

Compound percentage change

Repeated growth/decline over multiple periods.

Pricing calculations are essential for both everyday shopping decisions and business profitability. The PercentNinja pricing calculator hub brings together a range of tools designed to help you work out discounts, sale prices, profit margins, markups, and pricing adjustments quickly and accurately.

These calculators are useful for retailers, ecommerce sellers, freelancers, and anyone managing costs and pricing. You can calculate the final price after a discount, determine the selling price needed to achieve a target margin, compare markup versus margin, and analyse how price changes affect profitability. All tools work with any currency or value and provide clear results you can use immediately.

Each calculator page includes worked examples, simple formulas, and frequently asked questions so you can understand how the numbers are calculated, not just the final result. Use the tools above to plan promotions, set competitive prices, and make more informed business or purchasing decisions.

This pricing hub groups the most useful calculators for shopping and business pricing — discounts, sale prices, markups, margins, and quick percentage adjustments.

If you’re pricing products, running promotions, or checking profitability, use the tools above to calculate the numbers accurately and consistently (with clear explanations).

How to choose the right calculator

When you need a final price

If you’re running a promotion, use the Discount or Sale Price calculator to find the final price. If you’re setting a selling price from cost, use Markup (and then confirm profitability with Margin).

When you need to compare two values

If you want to compare two prices or costs over time (rather than apply a percentage), use the Percentage Increase/Decrease calculator.

Common questions

What’s the difference between markup and margin?

Markup is based on cost (profit ÷ cost). Margin is based on selling price (profit ÷ selling price). They are not interchangeable without conversion.

Which calculator should I use for discounts?

If you have an original price and a discount percentage, use the Discount Calculator or Sale Price Calculator to get the final price and savings.

How can I calculate a price increase needed to maintain my profit?

Use the Price Increase to Hit Profit tool to add your unit cost and target profit per unit and see the selling price required.

Can I use these tools for ecommerce pricing?

Yes. They’re designed for practical pricing decisions: discounts, markups, margins, and final-price calculations.

Why does a 20% discount need more than 20% to get back?

Discounts reduce the base. If you drop from £100 to £80 (20% off), you need a 25% increase to return to £100 because the new base is £80.

Pricing tools

Use these calculators for discounts, profitability, and pricing decisions. Many are useful for ecommerce and small business planning.

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