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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 →
ExplainerThirty Per Cent Profit, or Twenty-Three: It Depends What You Divide ByBuying at 100 and selling at 130 is a profit of 30 %, measured on the cost. Measured on the sale it is 23.08 % — the same trade, and a gap of nearly a quarter of the figure.ExplainerAveraging Down Halves the Loss and Doubles the PositionTen shares at 100 plus twenty at 80 gives an average of 86.67. Buy forty at 50 instead and it falls to 60 — but the money at risk goes from 2,600 to 3,000.ExplainerA One-Per-Cent Fee on Each Side Is Not a Two-Per-Cent ProblemBuy and sell fees of 0.5 % each need a 1.005 % gain to break even. Triple them to 1.5 % and you need 3.046 % — more than triple, because the two fees multiply rather than add.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.ExplainerOperating Margin Is the Only One That Compares Two Companies60,000 of operating income on 200,000 of revenue is 30 %. It sits between a gross margin that depends on accounting policy and a net margin that depends on debt and tax.ExplainerThe Gross Margin Is the Ceiling on Every Other Margin200,000 of revenue less 120,000 of cost of sales is 80,000 of gross profit and a 40 % margin. Everything the business spends after that comes out of the 80,000 — and out of nowhere else.