Nestora ToolsFree prototype · USD onlyAll toolsNestora Tools · Pricing scenarios
Know what each
sale leaves behind.
Compare your price with your variable cost. See contribution margin, markup and the sales needed to cover the fixed costs you enter.
No account. No upload. No automatic price changes.
Your scenario
Choose one unit: one item, job or billable hour. Keep that unit and your planning period consistent.
USD amounts: 0 to $1,000,000 each, up to two decimal places. Selling price must be above zero. Nothing is saved between visits.
Enter a scenario or try the fictional example.
Your modeled results
Projected revenue
Projected variable costs
Balance after entered variable and fixed costs
The balance is not verified net income or take-home pay. Missing costs, tax, financing, owner pay, refunds, changing fees or mixed products can change the result. Results use integer cents; percentages display two decimal places.
Margin is not markup
Contribution = price minus entered variable cost. Contribution margin divides that amount by price; markup divides it by variable cost. For the fictional $50 price and $30 cost, the contribution is $20, margin is 40% and markup is 66.67%. These are different denominators.
Break-even units = fixed costs ÷ contribution per unit, rounded up. This is not a gross-margin or full accounting analysis. Zero-cost markup is undefined. With a zero or negative contribution, additional sales cannot cover positive fixed costs.
Method reference: U.S. Small Business Administration break-even guide. Formula checked October 26, 2026. This tool is not affiliated with or endorsed by the SBA.
Turn the numbers into a next step.
Prepare a service estimate, or explore a clearer website for your business.
Open Estimate Builder · Ask Nestora about a website