Profit Margin Calculation for Australian Sellers
Profit margin calculation in Australia should account for GST (10%) when prices are tax-inclusive. Many AU sellers quote retail GST-inclusive — so you must extract GST before you judge true net revenue.
Profit margin % = (Net Profit ÷ Selling Price) × 100
👉 While we build AU-specific defaults, you can model AUD scenarios in our calculators and adjust tax/fees: Shopify Profit Calculator USA (switch numbers to AUD) · ROAS Calculator
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Calculating Profit Margin (Australia)
1. Start with GST-inclusive price 2. Extract GST (price × 10/110) if applicable 3. Subtract product cost, shipping, ads, platform fees 4. Compute margin percentage
That covers profit margin how to calculate, how do you calculate profit margin, and how to compute profit margin in one workflow.
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Profit Margin Equation & Formula
- Equation: Net Profit ÷ Selling Price
- Percentage: multiply by 100
- Related: profit margins formula is the same idea — consistency matters more than wording
How to Calculate Profit Margin Percentage (Example)
Sell at A$89.00 (GST incl.), product A$25, shipping A$9, ads A$12, fees ~A$2.90.
After extracting GST and costs, you will see whether you are closer to 20% or 35% net — the difference decides if Meta ads can scale.
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How to Find Profit Margin Before You Scale
If you cannot explain every dollar in the profit margin equation, pause paid acquisition. Pair margin work with break-even units using our Break-Even Calculator.
NZ/AU sellers expanding Trans-Tasman can also compare with our New Zealand profit calculator (GST 15%).
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