基于可追溯公开资料复盘企业家决策风格，并按用户设定的国家、城市、起始时间、启动资本与周期，完成创业路径、月度现金流、竞争冲击与结果推演，输出结构化报告与离线 HTML。
Stop guessing which products make money. Enter a SKU's price, costs, shipping, and ad spend — get true per-unit profit, contribution margin, and ROI across Amazon, eBay, Shopify, TikTok Shop, and Etsy. Break-even units, break-even ACOS, monthly P&L, and thin-margin warnings included. Fee presets are estimates you can override with your real numbers.
A single-file trading journal dashboard that turns every trade into data. See win rate, average R multiple and expectancy at a glance, so you know if a strategy really works. Filter by account, phase, strategy, symbol or date. Track cumulative P&L, profit by symbol, and weekly results. Live accounts get balance, profit above principal, and suggested weekly withdrawals at a percentage you set. Sortable trade log, no signup, no install. Your data stays with you. A tool for review, not advice.
Get a clean per-unit Amazon profit breakdown after every fee — referral, FBA, storage, landed COGS, PPC, and returns. See your true net margin, ROI on cost, and break-even ACoS, plus a sensitivity table and a ranked list of where your money leaks. Built for FBA/FBM sellers pricing new SKUs, auditing margins, comparing suppliers, or checking if a price cut still pays. Estimates from your inputs — verify against Seller Central.
Rebuild a spreadsheet of hardcoded numbers — the kind that breaks when you change one cell and that nobody trusts enough to take to a board or VC — into a driver-based, three-statement linked model you can actually stress. Scope by purpose, build a driver tree (price × volume × retention, not a growth rate from thin air), link P&L → Balance Sheet → Cash Flow, centralize inputs in one assumption layer, run base/bull/bear scenarios with sensitivity, and sanity-check against benchmarks.
