1. Cost what goes into the cake.
Start with the amount of each ingredient used in the order. A whole bag of flour is a purchase, but only part of it may belong in this cake’s cost.
If 1 kg of flour costs £1.60 and the recipe uses 250 g, its cost is £0.40. Convert the quantities into matching units before doing the maths. Add the sponge, filling, frosting and decoration ingredients.
For home-made components such as buttercream, work out the component’s full batch cost first, then charge the portion you use. Avoid counting an ingredient twice.
2. Your time belongs in the cost.
Choose an hourly rate, then multiply it by the hours the job needs. Include consultations, shopping, preparation, decorating, cleanup and delivery when those belong to the order.
Two and a half hours at £15 per hour adds £37.50 to the cost. That is your labour allowance. Your business profit comes after it.
3. Include the less obvious bits.
Add the cake board, box, dowels, ribbons, toppers and delivery. Include a sensible allowance for electricity, equipment wear and other running costs. Use your own records and experience to choose the allowance.
If payment processing, marketplace fees or taxes apply to the order, allow for them too. The calculator only knows the costs you enter.
4. Margin and markup mean different things.
A markup adds a percentage to your costs. A margin expresses profit as a percentage of the price you charge.
| For £58 of costs | 30% markup | 30% margin |
|---|---|---|
| Selling price | £75.40 | £82.86 |
| Profit | £17.40 | £24.86 |
| Profit margin | 23.1% | 30.0% |
Enter a 30% margin as 0.30 in the formula: £58 ÷ (1 − 0.30) = £82.86, rounded to the nearest penny. Choose the target that makes sense for your business; there is no single right margin for every cake.
5. Put it together for one order.
Here is an illustrative celebration-cake costing. These are example amounts, not market prices.
- Ingredients
- £12.50
- Packaging
- £3.00
- Labour: 2.5 hours × £15
- £37.50
- Overhead allowance
- £5.00
- Total cost
- £58.00
- Price at a 30% margin
- £82.86
For 12 servings, that is about £6.90 per serving. If you round the quote to another price, check the margin again.
A cost-based price is your starting point. The design, portion sizes, customer expectations and local market still matter. Keep a record of the actual hours and costs so the next quote becomes more accurate.
Work out your own cake price ↗