Product Profit Calculator (Shopify, CA)
Work out your per‑order profit on Shopify. Enter price, COGS, shipping and fees to see gross profit (GP), GP%, break‑even price and simple projections. Canadian defaults are pre‑filled; toggle tax for GST/HST‑inclusive pricing.
What to include in GP on Shopify
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Selling price minus discounts
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Cost of goods sold (COGS): product, packaging
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Payment fees: Shopify Payments % + per‑order fee; any third‑party gateway add‑on %
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Fulfilment costs: pick/pack, label, postage (minus any shipping the customer pays)
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Refunds/returns impact: lost fees, return shipping, restock where relevant
Simple GP formula (per order)
GP = (Price − Discounts + Shipping paid by customer) − (COGS + Payment fees + Fulfilment costs)
Important:
Fees vary by market and payment method. Use the calculator to model your own rates, then verify in Admin → Settings → Payments.
What affects your GP the most
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Discount depth: deeper discounts reduce net price and grow fees proportionally
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COGS and postage: small changes compound over volume
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Refund rate: even a few % can erase margin on thin‑margin items
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Payment method mix: third‑party gateways add extra % on each order
From GP to a simple NP estimate
Net profit (NP) subtracts overheads (apps, salaries, rent, utilities, fixed ops) from GP. In the calculator you can include a rough per‑order overhead to see how close you are to true profitability.
Common actions to improve GP
- Set free‑shipping thresholds to lift AOV above postage break‑even
- Promote high‑margin bundles; avoid discounting low‑margin heroes
- Switch to cheaper packaging that still protects the product
- Negotiate carrier and supplier rates; test fulfilment options
- Reduce refund drivers with accurate sizing, media and product education
Market specifics — Canada
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Currency: CAD ($). Per‑order fee commonly $0.30; percentage ~2.9% via Shopify Payments.
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GST/HST/PST: Tax treatment varies by province; treat collected tax as pass‑through. Be clear whether prices are tax‑inclusive.
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Payment fees: Snapshot 2.9% + $0.30. Confirm latest rates on Shopify CA pricing.
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Gateways: Add non‑Shopify‑Payments surcharge under 3rd‑party add‑on %.
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Fulfilment: Canada Post vs couriers differ by region and remote surcharges; model a typical parcel route.
Example — CA numbers
Price $39, 5% discount, COGS $13, customer pays $6 shipping, your fulfilment costs $7. With 2.9% + $0.30 fees and 2% refunds, review your GP and NP outputs.
FAQs
Does Shopify refund payment fees on returns?
Card fees are typically not refunded. Model a small refund rate to see its impact on realised gross profit.
Should I include marketing costs in GP?
No. Keep GP for product and fulfilment costs. Marketing spend belongs in your CAC/ROAS analysis and affects net profit.
What’s a healthy GP%?
It varies by category. Many DTC stores aim for 50–70% GP before overheads. Focus on improving your own baseline while staying competitive.