Margins
Ecommerce Contribution Margin Guide
Learn how ecommerce contribution margin connects price, variable costs, advertising, break-even decisions, and product-level profit.
11 min read · Updated June 11, 2026
Read guideResources
Ecommerce selling guides
Understand the costs and metrics behind a profitable online store. These guides help sellers use calculator inputs with confidence.
Shipping
Free Shipping Profitability Guide for Ecommerce Sellers
Evaluate whether free shipping works after product cost, carrier expense, packaging, fees, discounts, returns, and customer acquisition.
11 min read · Updated June 11, 2026
Read guidePricing
Discount Profitability Guide for Online Sellers
Plan ecommerce discounts with a practical workflow for margin, required sales lift, payment fees, shipping, advertising, and promotion limits.
12 min read · Updated June 11, 2026
Read guideOperations
How Returns and Refunds Affect Ecommerce Profit
Measure the true profit impact of ecommerce returns, refunds, labels, damaged inventory, nonrefundable fees, replacements, and support work.
12 min read · Updated June 11, 2026
Read guideAdvertising
Customer Acquisition Cost vs ROAS for Ecommerce
Understand how customer acquisition cost and ROAS measure different parts of ecommerce performance, and connect both metrics to contribution profit.
11 min read · Updated June 11, 2026
Read guidePricing
Product Bundle Pricing for Ecommerce Profit
Build profitable ecommerce bundles by modeling combined product cost, discount depth, fulfillment, fees, shipping, advertising, and returns.
11 min read · Updated June 11, 2026
Read guideInventory
Inventory Reorder Profitability Guide
Evaluate ecommerce reorders using per-unit profit, margin, ROI, sell-through, lead time, storage, advertising, and downside scenarios.
12 min read · Updated June 11, 2026
Read guideChannels
Shopify vs Etsy vs Amazon Profit Comparison
Compare Shopify, Etsy, and Amazon profit using the same product, fulfillment, fee, advertising, return, and operating cost framework.
13 min read · Updated June 11, 2026
Read guideShopify
Best Shopify Profit Calculator for Sellers in 2026
Learn what a useful Shopify profit calculator should include, from product and payment costs to shipping, ads, refunds, apps, margin, and break-even ROAS.
12 min read · Updated June 6, 2026
Read guideEtsy
Etsy Fees Explained for Sellers in 2026
Understand Etsy listing, transaction, payment processing, shipping, Offsite Ads, production, and profit planning costs for sellers in 2026.
12 min read · Updated June 6, 2026
Read guideAmazon
Amazon FBA Profit Calculator Guide for 2026
Learn how to estimate Amazon FBA profit using selling price, referral fees, fulfillment, storage, inbound shipping, COGS, PPC, returns, margin, and ROI.
13 min read · Updated June 6, 2026
Read guidePlatform comparison
Shopify vs Etsy Fees: Which Has Better Margins?
Compare Shopify and Etsy fees, traffic, control, branding, advertising, beginner experience, and margin planning without assuming one platform is best for every seller.
12 min read · Updated June 6, 2026
Read guideSeller operations
Best Free Ecommerce Spreadsheets for Online Sellers
Learn which free ecommerce spreadsheets help sellers track profit, inventory, ad spend, product research, break-even targets, and monthly P&L.
12 min read · Updated June 6, 2026
Read guideProfit
Ecommerce Profit Formula Explained
A practical framework for calculating ecommerce profit from revenue, product cost, shipping, payment fees, marketplace fees, advertising, returns, and overhead.
11 min read · Updated June 2, 2026
Read guidePricing
How to Price Products for Ecommerce Profit
Learn a repeatable pricing workflow that connects landed cost, fees, margin, shipping, discounts, advertising, and break-even checks.
11 min read · Updated June 2, 2026
Read guideFees
Ecommerce Fee Stack Checklist
Use this fee checklist to identify platform, payment, fulfillment, advertising, return, and operating costs before judging seller profit.
12 min read · Updated June 2, 2026
Read guideProfit
How to Calculate Ecommerce Profit
Learn how to calculate ecommerce net profit after product cost, shipping, platform fees, payment fees, returns, overhead, and advertising.
8 min read
Read guidePayments
PayPal vs Stripe Fees for Ecommerce Sellers
Compare PayPal and Stripe payment costs, fixed fees, international charges, refunds, disputes, and the factors that affect seller profit.
8 min read
Read guideMargins
What Is a Good Profit Margin for Ecommerce?
Understand healthy ecommerce profit margins, why targets vary by product and channel, and how to improve margin without relying on guesswork.
9 min read
Read guideAdvertising
How to Calculate ROAS for Ecommerce
Use the ecommerce ROAS formula, calculate break-even ROAS from margin, and evaluate advertising revenue against real profitability.
8 min read
Read guideFees
Marketplace Seller Fees Explained
A practical guide to listing, transaction, payment, fulfillment, advertising, subscription, and return fees for marketplace sellers.
9 min read
Read guideShopify
Shopify Fees Explained
Understand the Shopify costs that can affect store profit, from subscriptions and payment processing to apps, shipping, marketing, and returns.
9 min read
Read guideEtsy
Etsy Fees Explained
Learn how to account for Etsy listing, transaction, payment, promotion, shipping, and operating costs when evaluating product profitability.
9 min read
Read guideAmazon
Amazon Referral Fees Explained
Understand how Amazon referral fees fit into a seller profit calculation alongside fulfillment, advertising, returns, and product costs.
9 min read
Read guideeBay
eBay Promoted Listing Fees Explained
Learn how promoted listing costs interact with eBay selling fees, margins, attribution, and ROAS when planning profitable advertising.
9 min read
Read guideTikTok Shop
TikTok Shop Fees Explained
Plan TikTok Shop profitability by considering platform charges, promotions, fulfillment, affiliate or ad costs, returns, and product margin.
9 min read
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