ShopBook

Profit Margin & Markup Calculator

Enter what you buy an item for and what you sell it for. See your profit, margin and markup — or find the right selling price for the margin you want.

  • Margin is profit as a share of the selling price
  • Markup is profit as a share of the cost price
  • For a 25% margin you must mark up by 33.3%

Frequently asked questions

How do I calculate profit margin?

Profit margin = (selling price − cost price) ÷ selling price × 100.

How do I find the selling price for a margin?

Selling price = cost price ÷ (1 − margin). For a 25% margin on a ₦7,500 item: 7,500 ÷ 0.75 = ₦10,000.

What is a good profit margin for a small shop?

It varies by trade. Fast-moving goods like provisions often run 10–20%, while fashion, accessories and services can be 30% or more.