#small-business
Practical guides for online sellers: product photos, marketplace listings, video ads and growing your store.
How to Calculate Customer Acquisition Cost (2026): CAC Formula and Examples
The CAC formula with a worked monthly example, blended vs paid CAC, how CAC relates to ROAS, how to compare it with lifetime value, and examples for small online shops.
Break-Even ROAS (2026): Formula and Examples With Fees and Shipping
The break-even ROAS formula, a full example with marketplace fees, payment processing and shipping, how returns and order size change it, and how to set a target ROAS for profit.
How to Make a QR Code for Business (2026): Static vs Dynamic, Size and Uses
Static vs dynamic QR codes, the best places for a small business to use them, print size and contrast rules, and a testing checklist before you print.
How to Calculate Profit Margin (2026): Formula and Examples for Online Sellers
Gross and net margin formulas, a per-unit example with shipping, ads and marketplace fees, monthly net margin, and the formula for pricing to a target margin.
How to Price Handmade Products (2026): Formula, Examples and Etsy Fees
The materials + labor + overhead formula, how to work out each part, wholesale vs retail, a worked example with Etsy-style fees, and what to do when the price feels too high.
Markup vs Margin: The Difference, Formulas and Conversion Table (2026)
Why a 50% markup is only a 33.3% margin: the formulas, a conversion table, worked pricing examples, and the mistakes that quietly cut your profit.
LinkedIn Image Sizes (2026): Posts, Banners, Company Page and Article Covers
Every LinkedIn image size for 2026: feed posts, document carousels, personal banner, company cover and logo, article covers, how they crop and free ways to resize.
Instagram Highlight Cover Size (2026): Dimensions, Safe Area and Design Ideas
The right Instagram highlight cover size and circle safe area, which highlights a shop needs, design ideas, how to make covers for free and how to add them in the app.
16 Instagram Grid Layout Ideas for Small Businesses (2026)
Sixteen Instagram grid layouts ranked by effort, the 3:4 profile grid sizes, how to split one image into a puzzle grid, and how to plan posts so the pattern holds.
How to Calculate Discount Percentage (2026): Formulas, Stacked Discounts and Examples
The discount percentage formula both ways, how stacked discounts really add up, what buy-one-get-one is worth, and how deep a Black Friday sale can go before it loses money.
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