The SellersNest blog
ecommerce profit Guides for Sellers
Plain explanations of what selling online actually costs, with the calculator that answers each one.
Shopify Compare-at Price for BFCM 2026: Sale Badge Checklist
Set Shopify compare-at prices for BFCM and sync sale pricing to Google.
eBay Offers to Buyers 2026: Q4 Discount and Profit Guide
Send profitable eBay offers to interested buyers without over-discounting in Q4.
Walmart Marketplace Holiday 2026: Late Q4 Seller Checklist
A late-Q4 Walmart seller checklist for inventory, listings, shipping, fees and holiday profit.
Shopify Product Bundles for BFCM 2026: Margin and Inventory Checklist
Plan profitable Shopify BFCM bundles with inventory, discount and margin checks.
Shopify Abandoned Checkout Recovery for BFCM 2026
Set up Shopify abandoned checkout emails, test timing and protect BFCM margin.
Black Friday Break-Even Units: Set a Profitable BFCM Sales Target
Calculate the BFCM orders needed to recover discounts, ads and fixed costs.
Shopify Gift Card Fees 2026: Holiday Profit Checklist
Calculate Shopify gift card fees, discounts and holiday profit before launch.
Shop Pay Installments for BFCM 2026: Will BNPL Increase Profit?
Test Shop Pay Installments fees, margin and BFCM break-even sales.
Shopify Black Friday Discount Stacking: Protect Margin in 2026
Test Shopify discount combinations before BFCM and protect margin.
eBay Promoted Listings Fees: General vs Priority for Holiday 2026
Compare eBay General and Priority ad fees and protect holiday profit.
Black Friday Free Shipping Threshold: A Profit Formula for 2026
Set a profitable free shipping minimum using margin, postage and target profit.
Black Friday Discounts: Price Sales Without Losing Profit in 2026
Set profitable Black Friday discounts with formulas and a free calculator.
Gross Profit vs Net Profit: What Ecommerce Sellers Actually Keep
Learn gross profit vs net profit for ecommerce, calculate both margins correctly and find the costs that quietly reduce what your store keeps.