Free Tools & Guides for Ecommerce Sellers

Calculators and guides for Amazon, Shopify, Walmart and TikTok Shop sellers

Can you pay off 8fig early? How 8fig Growth Plans handle early payoff

What 8fig's terms say about paying off a Growth Plan early, how the cost of capital works, and what to check before moving an 8fig balance.

November 12, 2026

Latest posts

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Fixed or Variable Repayment? How to Choose the Right Funding Structure

Compare fixed vs revenue-based repayments for eCommerce. See how revenue consistency, seasonality, and growth plans determine the right funding structure.

December 18, 2025

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Dynamic Pricing vs. Flat Rates: Seasonal Shipping Costs

Analyze dynamic vs. flat-rate shipping for peak seasons—compare costs, cart impact, margins, and testing strategies to optimize profits and customer experience.

December 17, 2025

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How to Calculate ROAS for eCommerce

ROAS shows ad profitability: divide ad‑attributed revenue by full ad costs (including creative fees and returns) and compare to breakeven before scaling.

December 17, 2025

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Checklist for Managing Demand Fluctuations

Proactive demand planning, flexible financing, and agile supply chains prevent stockouts and excess inventory during eCommerce sales swings.

December 16, 2025

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Customs and Tariffs Checklist for eCommerce Sellers

Checklist for eCommerce sellers: HTS classification, landed costs, origin documentation, and pricing strategies after the 2025 de minimis removal and tariff changes.

December 12, 2025

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Transparent Financing for Shopify Sellers

Straightforward financing for Shopify stores: revenue-based funding, term loans, merchant cash advances and platform loans with upfront costs, sales-tied repayments and no hidden fees.

December 12, 2025