Methodology: How Lucro Delivery Calculates Results
Read the formulas, centavo rounding, assumptions, limits and sources behind Lucro Delivery calculators for per-order and monthly operating results.
Content updated October 18, 2026. Fee-reference dates are shown separately.
Separate the calculations first
Revenue is gross sales. Contribution per order remains after variable costs and applicable fees. It must still cover subscription and fixed expenses. Estimated monthly operating results include those entered costs but do not replace accounting.
Contribution = price − ingredients − packaging − commission − applicable payment fee − tax − merchant-funded promotions − applicable delivery − other per-order costs.
Monthly result = contribution × orders − applicable subscription − fixed costs. Monthly operating margin = monthly result ÷ monthly revenue.
Price for margin after fixed costs
For a 20% monthly operating margin under the example assumptions, the calculated price is R$ 31.64. Monthly volume and fixed expenses are part of this calculation.
The solver checks price regimes before and after the subscription threshold, validates centavo results and rounds commercial suggestions upward. If no qualifying price exists within the limits, the tool states that.
Calculate a price for your monthly margin
When subscription changes break-even
The revenue threshold uses price × orders in the entered scenario. Crossing it may introduce a cost jump. Sustainable break-even is the smallest volume after which modeled results remain nonnegative; a negative contribution may make it unreachable.
Assumptions to review
- Public rates are references. Check commission, calculation base, payments, subscription and threshold in the restaurant agreement.
- Percentage tax and promotions use the entered gross price. Promotions represent only the merchant-funded share.
- The online mix estimates equal-value orders. Own card-terminal payments may have a different fee, entered under other costs.
- The calculation does not reconcile statements, refunds, different basket values, unentered wastage, subsidies or specific tax regimes.
- With no orders, monthly margin is unavailable. Fixed costs remain in monthly results. Invalid data is never silently converted to zero.
Simulation precision and limits
Money is calculated in centavos. Percentage components round per modeled order; the payment mix is a planning average. Subscription is added once. Money fields range from zero to R$10 million, orders from zero to one million, and the interface target margin from zero to 95%. The solver has an iteration limit and reports when it cannot conclude.
Financial definitions: Sebrae — calculating break-even.