Start from the margin you need

Start with the margin the sale must produce, then work backwards to a price. Markup and gross margin are not interchangeable: markup is profit divided by cost, while gross margin is profit divided by selling price. A $100 cost with a $150 price has a 50% markup but a 33.3% gross margin.

Build the cost for one delivered order: product cost, inbound or allocated freight, packaging, fulfilment, payment fees and any other cost that rises with the sale. Include fixed-per-order costs and percentage-of-price fees separately. Exclude GST from the calculation; GST is charged at 15% in New Zealand, according to Inland Revenue (Te Tari Taake), and is collected rather than earned (Source: Inland Revenue (Te Tari Taake)).

If the required gross margin is M, product and non-percentage variable costs total C, and payment and other price-based fees total R, use: price = C ÷ (1 − M − R). For example, do not subtract a payment fee from the target margin if it is already included in C; classify each cost once. If freight is charged separately and reliably covers its cost, model it separately; if you absorb it, include it in C. Test the result in the product pricing calculator, then compare gross profit and contribution after advertising before changing a live price.

Markup and gross margin answer different pricing questions
MeasureFormulaUse it when
MarkupProfit ÷ costSetting a cost-plus uplift or checking how much cost is recovered
Gross marginProfit ÷ selling priceChecking whether the final price funds the required share of revenue

Show the price in New Zealand

Show the customer-facing price in NZD and make clear whether it includes GST. Inland Revenue (Te Tari Taake) states that GST in New Zealand is charged at a rate of 15%. For a GST-registered store, a truck accessory priced at $115 NZD including GST contains $100 of revenue before GST and $15 of GST. Keep the $115 price visible to the customer; use the $100 GST-exclusive amount when calculating margin (Source: Inland Revenue (Te Tari Taake)).

Apply the conversion consistently: GST-inclusive price ÷ 1.15 = GST-exclusive price, while a GST-exclusive target × 1.15 = the customer price. If your internal model uses a $100 cost and a $100 GST-exclusive selling price, it is break-even before other costs, even though the storefront displays $115. Rounding should happen in the customer-facing price, then the exact displayed amount should feed the order analysis.

Check your registration position before treating GST as recoverable or building it into your calculations. Inland Revenue says a business must register if turnover was at least $60,000 in the last 12 months or is expected to reach $60,000 in the next 12 months. Overseas merchants, marketplaces and redeliverers selling low-value physical goods, NZ$1,000 or less excluding GST, to New Zealand consumers may also need to register and collect GST. Use the product pricing calculator, then review New Zealand-specific guidance in NZ seller resources (Source: Inland Revenue (Te Tari Taake)).

Keep the customer price and margin calculation on different GST bases
UsePrice basisExample
Storefront and checkoutGST-inclusive NZD$115 NZD
Margin and profitability modelGST-exclusive$115 ÷ 1.15 = $100

Worked example with sample numbers

This example is illustrative. It uses sample numbers for a truck accessories store selling in New Zealand. They are made up to show the method, they are not a benchmark, and your own figures will differ.

Formula: Net price needed = (variable costs + fixed fee) / (1 - target margin - percentage fee).

Sample numbers: price needed for each target margin
Target marginNet price neededCheck
15.0%NZ$81.76NZ$12.26 left per order
25.0%NZ$93.10NZ$23.28 left per order
35.0%NZ$108.11NZ$37.84 left per order
45.0%NZ$128.87NZ$57.99 left per order

Run the same sum with your own numbers in the free calculator, or browse guides for sellers in New Zealand and more truck accessories 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.

Choose the measure that fits the decision

Use the measure that matches the decision. Gross margin shows the share of realised revenue left after product cost, so it supports setting a price and checking whether completed sales met the required economics. Markup expresses profit against cost, making it useful for applying a consistent pricing rule to supplier costs. They describe the same transaction from different bases and should not be compared as percentages.

Contribution margin goes further by subtracting variable selling costs, such as advertising, from revenue after product cost. Use it when assessing a promotion, channel or product’s ability to fund the sale. Landed cost is the product cost at your business after applicable acquisition and delivery costs; use it when comparing suppliers, deciding what to stock and checking whether a quoted buy price supports your intended retail price. For range selection, review contribution alongside product-level sales and inventory data rather than relying on revenue alone. ORVX’s product pricing calculator can help translate a target into a price.

Showing the price in New Zealand

For pricing truck accessories in New Zealand, show the customer-facing amount in NZD and state clearly whether GST is included. For a consumer-facing store, a GST-inclusive price reduces checkout ambiguity. If you also sell to trade customers, show the exclusive amount as a separate line rather than making the customer calculate it.

Inland Revenue (Te Tari Taake) states that GST in New Zealand is charged at 15%. For illustration only, an accessory displayed at NZ$230 including GST represents NZ$200 before GST and NZ$30 of GST. A NZ$200 price excluding GST becomes NZ$230 when GST is added. Keep the same basis when comparing products, collections and channels; otherwise a GST presentation difference can look like a margin or price difference (Source: Inland Revenue (Te Tari Taake)).

If you sell from overseas, check the low-value rules before setting the displayed amount. Inland Revenue defines a low-value good as a physical good valued at NZ$1,000 or less, excluding GST; overseas merchants, online marketplaces and redeliverers selling these goods to New Zealand consumers may need to register and collect GST. Inland Revenue also says a business must register if turnover was at least $60,000 in the last 12 months or is expected to reach $60,000 in the next 12 months (Source: Inland Revenue (Te Tari Taake)).

Choose the price basis for the customer and decision
Price basisDisplay exampleUse it when
GST-inclusiveNZ$230 incl. GSTShowing a consumer’s checkout price
GST-exclusiveNZ$200 + GSTPreparing a trade quote or analysing pre-GST economics

When a higher price is the wrong move

A higher price is the wrong move when the extra margin per unit is outweighed by lost orders. For illustration only, selling an accessory at $100 with a $40 product cost produces $60 gross profit per order. Ten delivered orders produce $600. Raising the price to $110 lifts unit gross profit to $70, but if orders fall to five, total gross profit becomes $350. The percentage margin improved; the commercial result did not.

Treat weak demand, excess stock and low repeat purchase as warning signs rather than automatic reasons to charge more. A price increase may also be wrong where customers can compare an otherwise similar product easily, or where the higher price pushes more shoppers toward returns or abandoned carts. Check product-level profitability alongside units sold, refund value and remaining stock value. Contribution after advertising is the relevant comparison when paid acquisition drives the sale; gross margin alone can hide an unprofitable volume decline.

ORVX can report where a price experiment is worth running from your store’s own numbers, but it cannot estimate price elasticity or predict how demand will respond. Test one product or collection with a defined period and compare delivered orders, contribution after advertising and returns before changing the wider catalogue. Use the product pricing calculator to model the break-even volume change first.

Sources

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.