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Profit / loss percentage calculator

Compute the profit or loss and its percentage from a buy and sell price.

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Need Profit / loss, Profit / loss (%)? The Profit / loss percentage calculator derives it from Buy price, Sell price, Quantity in one step. For instance, with Buy price = $100.00, Sell price = $130.00 and Quantity = 10 it returns Profit / loss = $300.00 and Profit / loss (%) = 30%.

How to use it

  1. Enter your values: Buy price, Sell price, Quantity.
  2. Read the result instantly: Profit / loss, Profit / loss (%).

Frequently asked questions

How does the Profit / loss percentage calculator work?

It takes Buy price, Sell price and Quantity and derives Profit / loss and Profit / loss (%) from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

3 values: Buy price ($), Sell price ($) and Quantity. Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Buy price = $100.00, Sell price = $130.00 and Quantity = 10, the calculator returns Profit / loss = $300.00 and Profit / loss (%) = 30%. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Buy price = $200.00, Sell price = $260.00 and Quantity = 20 instead, Profit / loss goes from $300.00 to $1,200.00 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Buy price = $50.00, Sell price = $65.00 and Quantity = 5, Profit / loss comes out at $75.00. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Setting a price that survives contact with reality: covering costs, hitting a target margin, and checking what the marketplace and payment fees leave behind.

What is the most common mistake?

Confusing margin with markup. A 50% markup is a 33% margin, and pricing as if they were the same undercharges by a third on every unit sold.

How accurate is it, and what are the limits?

Estimate only — not financial advice.

What is the difference between the Profit / loss percentage calculator and the Profit calculator?

This one returns Profit / loss and Profit / loss (%); the Profit calculator returns Profit and Margin. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

E-commerce profit calculator is the closest one after this: Compute the profit per sale after product cost, marketplace fees and shipping.

Further reading

All guides →
ExplainerWhat Is Food Cost Percentage? Portion Drift Beats Supplier PricesA $3.30 plate on a $12.00 menu is 27.5 percent. An extra 30 grams of chicken and 6 percent waste push it to 31.65 percent — while a 5 percent supplier increase moves it only 1.38 points.ExplainerHow Etsy Fees Work: The 6.5 Percent Is About a Third of the BillThe famous transaction fee is one of five layers. On a $40 item with $6 shipping, Etsy's order fees come to $4.62 — and $11.52 if the sale came through Offsite Ads.ComparisonStripe vs PayPal Fees: What Each One Actually TakesOn a $100 domestic card sale the gap is $0.78. On the same sale from abroad with a currency conversion it is $2.78. The headline rate is the part that matters least.ExplainerWhat an Ecommerce Order Actually Earns YouBetween the price on the product page and the money in the bank sit seven deductions, one of which is charged per order rather than per euro. Walk one order down the ladder, then compute the return rate at which the whole thing goes negative.ComparisonGross Margin vs Markup: The Confusion That Costs Real MoneyMargin is measured on the selling price, markup on the cost. They describe the same profit from opposite ends, they are never equal, and reading one as the other quietly removes a large slice of your gross profit.ExplainerHow eBay Fees Work: The Percentage Is Not on the Price You SeteBay charges its final value fee on the item plus the postage the buyer paid. A 13.6 percent rate on a $100 item with $10 shipping costs $15.36 — 15.4 percent of the price you actually set.