What Is a Good Profit Margin?

Start with the formula

Profit = Revenue - Cost
Profit Margin = Profit / Revenue * 100

Profit margin answers one practical question: after the costs included in your calculation, how much of each sales dollar is left?

What makes a margin good?

A margin is stronger when it leaves room for overhead, taxes, refunds, slow seasons, owner pay, and reinvestment. It is weaker when a small cost increase or discount can erase most of the profit.

For example, a handmade product may need a higher margin because production time, packaging, returns, and platform fees all reduce the money left over. A high-volume reseller may accept a lower margin if inventory moves quickly and operating costs are controlled.

Use margin by decision type

• Use margin to compare products, services, or customer segments.
• Use markup when you are turning cost into a selling price.
• Use break-even analysis when fixed costs are significant.
• Use ROI when the question is whether an investment paid off.

Worked example

If revenue is $8,000 and direct cost is $5,200, profit is $2,800. The margin is $2,800 divided by $8,000, or 35%.

That margin may look healthy, but it only tells the full story if the cost number includes the expenses you meant to measure. If shipping, payment fees, or labor are missing, the real margin will be lower.

Common mistakes

• Comparing margin across businesses that use different cost definitions.
• Ignoring refunds, platform fees, packaging, or payment processing costs.
• Confusing markup with margin.
• Assuming a high margin fixes weak demand or slow cash collection.

Use the calculators

Start with the Profit Margin Calculator. If you are setting prices from cost, use the Markup Calculator. If fixed costs matter, use the Break Even Calculator.

FAQ