Formula
Markup mode: sell price = cost x (1 + markup / 100). Margin mode: sell price = cost / (1 - margin / 100). Profit = sell price - cost.
Trade & Construction
Convert cost, markup and margin into a contractor selling price and gross profit.
Calculator
Markup mode: sell price = cost x (1 + markup / 100). Margin mode: sell price = cost / (1 - margin / 100). Profit = sell price - cost.
This is the method behind the answer, so the result can be checked rather than simply trusted.Visual grid
Length, area, volume and material estimates are grid problems too: measure the space, account for edges and allowances, then turn the pattern into a number you can use.
Space calculations turn a real surface, room, run or volume into cells, edges and allowances that can be quoted, ordered or checked.
CalculationTime
Markup mode: sell price = cost x (1 + markup / 100). Margin mode: sell price = cost / (1 - margin / 100). Profit = sell price - cost.
Use this space on the printed report for client, supplier, classroom, job-location, measurement, quote or approval notes.
Markup mode: sell price = cost x (1 + markup / 100). Margin mode: sell price = cost / (1 - margin / 100). Profit = sell price - cost.
A $500 cost with 40% markup sells for $700, giving $200 profit and a 28.6% gross margin.
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Methodology & Accuracy
CalculationTime pages are built around visible arithmetic: the formula, assumptions, worked example and practical limitations are shown so the result can be checked rather than simply trusted.
Markup mode: sell price = cost x (1 + markup / 100). Margin mode: sell price = cost / (1 - margin / 100). Profit = sell price - cost.
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Where a calculator follows a named legal, trade or industry standard, that standard is cited visibly. Otherwise the page uses transparent general arithmetic and states its limits.Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
The contractor markup and margin calculator turns job cost into a selling price and shows both markup and gross margin.
No. Use it as a transparent planning estimate, then verify the current rule, rate, contract or official source for the decision you are making.