Start With the Margin You Need to Measure
Choose the margin before judging whether an order is profitable. Each measure answers a different question, so a baking supplies store can have a strong product margin and still lose money after marketing, wages and other overheads. Use the profit margin calculator to check the calculation against your own figures.
Gross margin shows what remains after the direct cost of the products sold. For illustration only, $100 of realised revenue less $60 of product cost leaves $40 gross profit, or a 40% gross margin. Use it to set or review product pricing, supplier costs and collection economics.
Contribution margin goes further for a decision about an order, product or campaign. It shows what remains after the costs that vary with making and acquiring that sale, including advertising where relevant. If $40 gross profit becomes $15 after those costs, the contribution margin is 15%. Use it to decide whether to scale, reduce or fix a sales activity.
Operating margin subtracts the store’s broader operating expenses, showing whether the business model supports itself. Use it for decisions about staffing, software, rent and growth capacity. After-tax profit subtracts tax as well; use it to assess what the business ultimately retains and to compare the result with your required return. Do not use after-tax profit to diagnose a single product before tracing its contribution.
| Measure | What it answers | Use it when |
|---|---|---|
| Gross margin | How much remains after product cost | Reviewing price, supplier cost or product mix |
| Contribution margin | Does this sale add money after variable selling costs? | Assessing an order, product, collection or campaign |
| Operating margin | Does the store cover its operating expenses? | Planning overhead, staffing or growth |
| After-tax profit | What does the business retain after tax? | Assessing overall returns and business sustainability |
Which Costs Belong in a Baking Supplies Margin
A baking supplies margin should include the product’s landed cost: supplier price plus inbound freight, duties and other costs required to get it ready for sale. Add packaging materials, pick-and-pack labour, fulfilment fees and the carrier cost for each order. Payment processing fees, marketplace or Shopify transaction fees, and other per-order platform charges also belong here.
Advertising is an order-level cost only when you allocate spend to the order or product using a stated method. Returns need their own allowance: refunded product value, return postage, handling, damaged or unsaleable stock and the original fulfilment cost that cannot be recovered. For illustration only, a $60 order with $22 product cost, $2 packaging, $6 fulfilment, $8 shipping, $2 payment fees and $10 allocated advertising leaves $10 before overheads.
Rent, wages for non-order-specific work, insurance, accounting, software subscriptions and warehouse costs are business overheads. Use them for a net-profit view, not to disguise the economics of one order. Compare gross profit before advertising, contribution after advertising and net profit after overheads; act on the measure matching the decision. A profit margin calculator can keep those layers separate. ORVX derives gross and net margins from your product cost model and reports contribution after advertising by product and collection.
Worked example with sample numbers
This example is illustrative. It uses sample numbers for a baking supplies store selling in Australia. They are made up to show the method, they are not a benchmark, and your own figures will differ.
Formula: Margin = (net price - cost of goods - delivery - packing - fees - returns allowance) / net price.
| Line | Amount |
|---|---|
| Price the customer pays | A$77.99 |
| Price without tax | A$70.90 |
| Cost of goods | A$31.33 |
| Delivery and packing | A$11.63 |
| Payment fee | A$2.59 |
| Returns allowance | A$0.72 |
| Left over | A$24.63 |
| Margin on net price | 34.7% |
Run the same sum with your own numbers in the free calculator, or browse guides for sellers in Australia and more baking supplies guides.
General information only: tax, duty and import rules change and depend on your situation, so check with an accountant or the official source before acting.
Eligible Shopify stores can see these numbers for their own store through the Founding 10,000 offer.
Read One Order From Checkout to Profit
Read the worked order from the payment received, not from the product price alone. Start with the customer’s total payment, separating product revenue, any shipping amount charged and GST where applicable. The Australian Government says GST is generally 10% and, for a GST-registered business, the GST portion is one-eleventh of the sale price. Treat that collected tax separately from the revenue available to cover costs (Source: business.gov.au (Australian Government)).
Then follow the deductions in order: landed cost of the products, delivery paid to the carrier, payment or platform fees, and any other cost shown in the example. After each deduction, label the result clearly, revenue, gross profit, or profit after fulfilment and fees, so a product margin is not confused with an order margin.
Finally, account for what happened after checkout. A cancelled order should not become revenue; a returned order reduces realized revenue by its refund and may leave delivery or return costs behind. That is why the example’s final figure can differ from the amount initially paid. Use the same sequence in the profit margin calculator, or compare the result with product and collection reporting in ORVX.
Why Tax Changes the Margin in Australia
Tax can make a checkout total look like revenue when part of it is collected for government. business.gov.au says GST is 10% on most goods and services in Australia, and registered businesses collect one-eleventh of the sale price. A customer paying A$110 therefore creates A$100 of ex-GST sales and A$10 of GST to account for, not A$110 of product revenue. The same separation applies to taxable shipping charges (Source: business.gov.au (Australian Government)).
For imported low-value goods, business.gov.au says GST applies to most retail sales to Australian consumers where the goods are valued at A$1,000 or less; that customs value excludes transport and insurance. Check how the obligation applies to your selling and fulfilment arrangement rather than treating collected GST as margin (Source: business.gov.au (Australian Government)).
Use an ex-GST gross margin to judge product pricing and landed-cost economics. Use net profit after operating expenses to judge the order’s commercial performance. Business tax is then applied to taxable business profit under the store’s structure, after applicable deductions and adjustments; it is not calculated by simply taxing customer payments. ORVX can calculate realized revenue, gross profit and net profit from delivered orders, but your accountant or tax adviser should determine the filing treatment and final tax payable.
Where Baking Supplies Margins Leak
Margin leakage usually appears in the gap between the checkout calculation and the order’s realised contribution. Undercharged delivery is immediate: if a customer pays $8 freight but the carrier and packing cost $14, the order loses $6 before payment costs. A 10% discount on a $60 basket removes $6 of revenue; a 2% payment fee on the remaining $54 removes another $1.08. Small orders amplify fixed costs, because $5 of picking and packing consumes far more of a $25 order than a $150 order.
Operational losses need separate treatment. A damaged cake tin may turn expected gross profit into a full product-cost loss, while expired ingredients or obsolete packaging become stock write-offs without a sale. An unclaimed return can add outbound freight, return freight, inspection time and refund value, even if the product is eventually resold. Act on delivery leakage and payment costs through per-order contribution; act on discounts through realised selling price; investigate damage and write-offs through product and inventory reports; and review returns by units and refund value. ORVX reports these effects alongside product, collection and customer profitability, so a high-revenue range is not mistaken for a profitable one. Use the profit margin calculator to test each leakage scenario.
Sources
- Register for goods and services tax (GST) (business.gov.au (Australian Government), checked 26 October 2026).
- International tax (business.gov.au (Australian Government), checked 2 November 2026).
How this page was made: drafted with AI from a brief, then checked by automated rules for arithmetic, sources and duplication. The sample numbers were calculated, not reported.