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Description
在 Amazon 商品页面上直接计算 FBA 净利润、利润率与 ROI，无需离开页面。费率均由用户手动输入，不内置任何 Amazon 费率表。 Calculate FBA net profit, margin & ROI directly on any Amazon product page. No sign-up. 100% free. Amazon FBA Profit & Margin Calculator gives sellers and product researchers an instant profit check — without leaving the Amazon product page or opening a spreadsheet. HOW IT WORKS Open any Amazon product listing. Click the Σ panel on the right side of the page, or the toolbar icon from any tab. Enter your fees and costs, and profit figures update in real time. KEY FEATURES ▸ Two calculation modes • Forward mode — enter sell price, costs, and fees to see net profit, margin, and ROI • Reverse mode — enter your target margin or ROI to find the maximum acceptable product cost ▸ Built-in fee flexibility • Referral fee supports both % and flat $ input • FBA fulfillment fee entered manually — no outdated rate tables baked in • Other costs field for shipping, prep, and misc expenses ▸ Per-ASIN auto-save Your inputs are saved per product page and restored automatically next time you visit. ▸ Fee presets Save common category fee combinations (e.g. "Electronics 8%") and apply them in one click. ▸ Selection list Add multiple products to a comparison list and review them side by side. ▸ Target margin indicator Set a profit margin target and get a color-coded traffic light (green / yellow / red) showing how each product measures up. ▸ One-click copy Copy the full calculation result as a single line of text — paste directly into your sourcing spreadsheet. WHY NO BUILT-IN RATE TABLES? Amazon's referral fees vary from 8% to 45% by category and change regularly. FBA fulfillment fees depend on size tier, price bracket, and whether the item is apparel. Hardcoding rates would give you stale, wrong numbers. Instead, look up the current rate at Amazon's Revenue Calculator (link inside the extension), enter it once, and save it as a preset. PRIVACY All data is stored locally in your browser using chrome.storage.local. Nothing is sent to any server. No account required. PERMISSIONS • amazon.com — to inject the floating panel on product pages and auto-read the listed price • activeTab — to detect the current ASIN • storage — to save your inputs and presets locally