Store Guides
Use worked store examples to check ROAS, shipping thresholds, return costs, bundle prices and slow stock. Free calculators and linked primary sources.
- 3× ROAS. Still losing money? Check these costs.A good-looking ROAS can hide a loss. Calculate break-even ROAS after product costs, shipping, fees and refunds, then test your real ad budget for free.
- The refund is only the start. What does a return really cost?A refund can cost more than lost revenue. Calculate retained fees, shipping and stock recovery, then test return rates with a free local calculator.
- Free shipping can eat your profit. Find your real threshold.Find a free shipping threshold after product costs, fees and delivery. Compare a profit target with preserving current contribution in a free calculator.
- A bigger bundle. A smaller profit? Check before you launch.Price a product bundle after quantities, fees, shipping and ads. Check your contribution, break-even price and available stock with a free calculator.
- A 67% markup can leave almost nothing. Here is why.Learn margin versus markup with a simple store example. Then subtract fees, delivery and ads to see what is left before tax and overhead.
- 20% off can halve your margin. Check slow stock before a sale.A 20% discount can halve your unit margin. Calculate the extra sales needed, check available stock and test a promotion with your own recent figures.
- UK online sales fell. Some store types still grew.UK online spending fell in September, but some store types rose. Compare recent official data, check the date range and test the real cost of a discount.






