The Merchant Sheets Learn Center

Guides and articles for ecommerce operators

Plain-English breakdowns of margin, cash flow, inventory, and Amazon economics, written for the operators running the business.

Browse by topic

Unit Economics & Margins

Contribution margin, COGS, pricing, promos

Cash Flow & Working Capital

13-week forecasting, CCC, burn & runway

Inventory & Supply Chain

Reorder points, forecasting, landed cost

Forecasting, Budgeting & Planning

Budget vs actual, models, scenarios

Ecommerce Benchmarks

Margin, CAC, retention & ops benchmarks

Financial Analysis & Teardowns

Ratios, KPI packs, public-company teardowns

Amazon

FBA fees, ACoS/TACoS, reconciliation

Accounting

Ecom accounting, COGS, cash vs accrual

General Business

Starting, funding, valuation, finance terms

All articles

cash runway draining month by month with an inventory-buy spike shortening the runway.

Burn Rate & Runway

Key takeaways Burn rate is how much cash a business spends each month; net burn subtracts the revenue you collect, while gross burn counts

Read More »