Ecommerce & retail
Formulas, worked examples, and templates. Each guide ends in a free app that does the math.
Guides for ecommerce & retail
Reorder Point Formula, With a Worked Example
How to calculate a reorder point (daily sales × lead time + safety stock), a worked example for a small store, how to size safety stock, and how much to order once you hit it.
Read the guide Pairs with the reorder plannerHow to Price a Product for a Target Margin in Ecommerce
Selling price formula for a target margin with marketplace fees in the divisor, a margin-to-markup table, a CSV worksheet, and the free margin calculator.
Read the guide Pairs with the margin calculatorHow to Calculate Landed Cost for Multiple Items (Template)
Split one freight bill and one duty bill across every SKU: three allocation methods, a worked example, a CSV template, and the free margin calculator.
Read the guide Pairs with the margin calculatorAmazon FBA Profit Margin Formula, Fee by Fee
The FBA net-per-unit formula, every Amazon fee and where to find yours, a worked example, a CSV template, and the free margin calculator.
Read the guide Pairs with the margin calculator