Return on investment and profit margin, worked out from the numbers you enter.
They work out common business figures, such as return on investment and profit margin, from numbers you enter.
Start from the question. Each tool on this page answers one question about a business figure, and its one-line description says which.
No. They use only the numbers you enter.
No. They show the arithmetic for the figures you enter. You decide what the figures cover, such as the period and which costs are included.
Yes. Each calculator page has a section on how the result is calculated, and a link that reopens the page with the inputs behind the example result, so you can reproduce it by hand or in the tool.
No. These are educational calculators, not financial advice or a recommendation.