Shopify Profit Margin Calculator

Margin percent after product, shipping, and payment costs measured against selling price.

Overview

Use when Shopify payout math feels fuzzy and you need one SKU envelope. Shopify apps, refunds, discounts, ads still sit partly outside.

When to use this calculator

Rule of thumb

This margin is from the fields you included. Add anything you treat as variable in real life or the percent will read too high.

Terms used in this calculator

Gross margin
Sales minus COGS as a percentage of revenue—nothing below gross profit counted here.
Net profit (quick model)
Revenue minus a lump sum of expenses you chose to lump for a planning pass—not audited net income.
AOV
Average order size: slice revenue divided by order count—with tax/shipping counted the same each month.
Net profit margin 53.04%

Results are simplified estimates for educational purposes only and should not be treated as financial, accounting, legal, or tax advice. See our disclaimer for details.

Formula

(Selling price minus summed variable costs) ÷ selling price × 100 as percent.

Example calculation

Using the default example values from the JSON seed for this tool:

Selling price
79
Product cost (COGS)
28
Avg shipping fulfillment
6.5
Avg payment processing
2.6

Result: 53.04% (Net profit margin)

How to interpret this result

Net margin percentage after common variable costs in your inputs.

Fixed overhead, returns, and financing sit outside this per-order view.

Verify discounts are reflected in selling price when margin looks too high.

Common mistakes

  • Using list price instead of post-discount selling price.
  • Missing payment processor or app fees that scale with orders.
  • Ignoring returns in categories with heavy RMA.

What to do next

Pricing, refunds, ROAS, and AOV calculators line up storefront economics with ads.

How to improve this result

  • Renegotiate COGS or shipping when SKU velocity justifies volume.
  • Fix sizing, imagery, and PDP copy when refund reasons cluster on “not as described.”
  • Run small pricing tests on best sellers while you watch conversion, not headlines.

Recommended tools

FAQ

Post-discount or list price?
Use the realized selling price shoppers pay after automatic discounts matter.
Where do Shopify transaction fees land?
Include them inside variable costs unless you purposely treat them upstream.
Does this allocate rent?
No—only the fields you summarized as variable-ish per order live here.
Why differs from Shopify reports?
Reports batch taxes, payouts, refunds, and rounding differently—align definitions.
Can I benchmark across SKUs?
Yes if each SKU uses coherent COGS—not blended catalog averages blindly.

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