WhatSales

Ecommerce profitability insights

Guides and updates on ecommerce profitability, multichannel selling and running a leaner operation.

Performance

Ecommerce Performance Reports: What to Include, KPIs and a Template

What to include in an ecommerce performance report, the KPIs to track and how each is calculated, plus a simple weekly template.

27 November 2026

Product

How Much Does Linnworks Cost? What Linnworks Says and What to Ask

Linnworks does not publish prices. Here is how it says it charges, what pushes the cost up, and what to ask before you sign.

26 November 2026

Profitability

Black Friday Returns: Protect Your Profit After the Peak

Peak-season returns and refunds arrive after the revenue is booked. What to track so Q4 profit is real, not a January surprise.

24 November 2026

Product

Amazon Marketplace Integration: How It Works and What to Check

How an Amazon marketplace integration works, what Amazon charges sellers, and what to check so the profit you see is complete.

20 November 2026

Profitability

B&Q Marketplace Seller Fees: What You Pay and What You Keep

What B&Q Marketplace sellers are reported to pay, where each figure comes from, and what an order leaves after commission and delivery.

19 November 2026

Profitability

Q4 Stock Planning for Multichannel Sellers: Avoid Stockouts and Overstock

How multichannel sellers can plan Q4 stock: cover, lead times, overselling risk and allocating limited stock by profit.

17 November 2026

Profitability

SKU-Level Profitability: Find Your Real Winners and Losers

How to calculate profit per SKU after fees, shipping, ads and returns, with a worked example and a practical first step.

13 November 2026

Profitability

ACoS vs TACoS: Which Amazon Ad Metric Should You Steer By?

ACoS measures ad efficiency and TACoS measures ad dependence. How experienced sellers read them together, with a worked example.

12 November 2026

Profitability

Break-Even ACoS on Amazon UK: How to Work It Out Per Product

How to calculate break-even ACoS for each Amazon product, with a worked example and the VAT trap UK sellers fall into.

10 November 2026

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