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Calculator · Break-Even

Sales Mix Break-Even Calculator

Estimate break-even for a fixed two-product sales mix, with composite baskets, whole-product quantities and revenue at the rounded mix.

By PriceAndProfit Editorial Updated

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Fill in the fields: the result appears under the form, with the formula below it.

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Formula and cost boundary

Basket contribution = A quantity × A contribution + B quantity × B contribution; baskets = ceil(fixed ÷ basket contribution)

The basket is a modeling ratio, not necessarily a bundle sold to a customer. Quantities must be nonnegative whole numbers and basket contribution must be positive. One loss-making product can be included if the full basket contributes enough. The result depends on maintaining the entered mix; capacity and independent demand may prevent those sales.

Worked example: Two A for one B

The following inputs are hypothetical values for checking the calculation. They are not recommended prices, wages, margins or platform charges. Keep the units and period shown in each label when replacing them with your own records.

Inputs for this worked example
InputExample value
Fixed costs for the period $1,000
Product A price $30
Product A variable cost $18
Product A units in a composite basket 2 units
Product B price $50
Product B variable cost $30
Product B units in a composite basket 1 units
Outputs from the displayed inputs
ResultCalculated value
Whole composite baskets 23 baskets
Product A units 46 units
Product B units 23 units
Revenue at rounded sales mix $2,530
Operating profit at rounded mix $12

Using the result

Save the input set alongside the source date of each quote or cost record. Review the cost boundary before comparing this result with another report: a contribution measure may exclude overhead, and a cash measure follows payment dates. Display rounding does not change the underlying assumptions. Recalculate when an input changes; the tool does not predict future sales or collections.

Are any rates supplied automatically?

No. Numeric fields are your inputs. Example values demonstrate arithmetic only. Check your contracts and records for the amounts that apply to your business.

Why might a result be unavailable or negative?

A missing denominator or inconsistent inputs can make the calculation undefined. Those combinations are rejected or labeled explicitly. A valid negative result remains visible because it may identify a loss or cash shortfall.

Method reference: OpenStax: Multi-Product Break-Even Analysis. Checked October 22, 2026. Composite units assume a fixed sales mix.

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