Seller guides

Practical ecommerce margin guides for sellers.

Use these guides with the calculators to understand fee categories, formulas, and pricing mistakes before you launch or scale a product.

Amazon fee guides

Referral fee, FBA fee, Handmade fee, and Amazon margin decisions.

Amazon FBA Referral Fee: Is It the Same as FBA Fee? Formula, Examples & Calculator Amazon Referral Fee by Category 2026: Rates Table, Calculator & Examples Amazon Handmade Referral Fee Percentage 2026: 15% Fee, $0.30 Minimum, and Profit Calculator Amazon Handmade vs Etsy Fees 2026: Which Is Better for Handmade Sellers?

Free spreadsheet templates

Download Excel-ready CSV templates before you price or order inventory.

Free Amazon Referral Fee Calculator Spreadsheet: Category Rates, Minimum Fee, Handmade & FBA Free Landed Cost Calculator Excel Template: Download and Calculate True Import Cost Free Amazon FBA Profit Calculator Spreadsheet Template for Excel and Google Sheets

Landed cost and import pricing

Estimate import duty, freight, sellable units, and true unit cost.

Landed Cost Calculator: What It Is, Formula, and Import Cost Examples Free Landed Cost Calculator Excel Template: Download and Calculate True Import Cost

6 min read · Published 2026-07-06

Etsy Pricing Formula for Handmade Sellers

Build an Etsy price from materials, labor, packaging, fees, ads, and target profit.

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5 min read · Published 2026-07-06

Etsy Profit Margin Example with Ads and Shipping

A practical Etsy margin example showing how fees, ads, shipping, and packaging change profit.

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6 min read · Published 2026-07-06

Shopify Break Even ROAS: When Ads Stop Making Money

Calculate the break-even ROAS a Shopify product needs before scaling paid ads.

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5 min read · Published 2026-07-06

Shopify Shipping Cost Pricing: Free Shipping Without Losing Margin

Estimate how free shipping, packaging, and carrier costs should be built into Shopify prices.

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5 min read · Published 2026-07-06

TikTok Shop Affiliate Commission and Profit Planning

Model TikTok Shop affiliate commission before offering creators a promotion rate.

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6 min read · Published 2026-07-06

Import Duty and Landed Cost Example for Ecommerce Sellers

See how product cost, freight, duty, customs fees, and domestic delivery create landed cost.

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6 min read · Published 2026-07-06

Marketplace Fee Comparison: Amazon vs Etsy vs Shopify

Compare how marketplace fees and channel economics change profit for the same product.

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6 min read · Published 2026-07-06

Product Pricing Formula for Ecommerce Sellers

Use a target margin formula to set ecommerce prices after costs, fees, shipping, and ads.

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5 min read · Published 2026-07-06

Shipping Cost per Order Calculation

Calculate shipping cost per order with postage, packaging, handling, insurance, and free-shipping recovery.

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5 min read · Published 2026-07-06

Break Even Price for Online Products

Find the selling price where an ecommerce product stops losing money after costs and fees.

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