Work out how many sales a project needs to pay for its upfront costs. This guide offers a practical starting point, not a substitute for specialist advice.
1. Separate fixed and variable costs
Fixed costs remain roughly constant over your planning period, such as a market stall fee, a campaign setup charge or rental. Variable costs rise with each sale, such as materials, shipping and transaction charges.
2. Calculate unit contribution
Subtract variable cost per unit from the selling price. A £20 item with £8 variable cost contributes £12 towards fixed costs. Selling a unit at a negative contribution worsens the position.
3. Divide fixed costs by contribution
If fixed costs are £600 and each item contributes £12, the business needs 50 sales to break even. Round up fractional units because you cannot usually sell a fraction of a product.
4. Add your target profit
To estimate required sales for a £300 profit, add the desired £300 to fixed costs before dividing by contribution: £900 divided by £12 is 75 units.
5. Check your assumptions
Break-even calculations assume price and unit costs are stable. Real results change with discounts, returns, staffing requirements, taxes and product mix.
Put it into practice
Use the tools below with numbers from your own business, then revise your assumptions against real results. Keep a record of the decisions you make and why.