E-Commerce Profit Calculator & Fee Analyzer — Complete Excel Workbook

📊 Master Your E-Commerce Profitability

Stop guessing whether your online store is actually profitable. This comprehensive 6-tab Excel workbook gives you crystal-clear visibility into every dollar — from COGS to ad spend to platform fees.

Whether you sell on Shopify, Amazon, Etsy, eBay, or any combination, this calculator shows you exactly where your money goes and how to keep more of it.

📦 What's Inside — 6 Powerful Sheets

1. 💰 Product Profitability Calculator

• Enter your product details and instantly see per-unit profit
• Auto-calculates gross margin, net profit, and monthly/annual projections
• What-If Analysis: Test 6 different price points to find your optimal pricing
• Built-in return cost reserves and break-even price calculation

2. 🏪 Platform Fee Comparison

• Side-by-side fee comparison across 8 platforms: Shopify, Etsy, Amazon FBA, eBay, BigCommerce, WooCommerce, Gumroad
• See exactly how much each platform takes from every sale
• Volume sensitivity analysis: Compare profits at 50 to 5,000 units/month
• Auto-recommends the best platform by margin and profit

3. 📈 Monthly P&L Tracker

• Track revenue, COGS, and operating expenses month by month
• Auto-calculates gross profit, net profit, and cumulative totals
• Pre-populated with sample data to show you how it works

4. 📢 Ad Spend & ROAS Calculator

• Calculate your Return on Ad Spend (ROAS), CAC, LTV, and LTV:CAC ratio
• Multi-campaign comparison: Facebook, Google Shopping, TikTok, Instagram, Google Search
• Break-even ROAS calculation so you never overpay for ads

5. ⚖️ Break-Even Analysis

• Enter your fixed costs and unit economics to find your break-even point
• See profit/loss at 10 different sales volumes (50 to 1,000 units)
• Know exactly how many units you need to sell daily to break even

6. 📦 Inventory Cost & Reorder Tracker

• Track up to 8 products with SKU, cost, quantity, and reorder alerts
• Automatic reorder notifications when stock drops below your threshold
• Inventory turnover analysis with letter grades (A–D)
• Total inventory valuation and reorder cost estimation

✅ Who This Is For

• Shopify store owners who want to understand their true margins
• Multi-channel sellers comparing platform profitability
• Amazon FBA sellers tracking fees and margins
• Etsy creators pricing their handmade products
• Dropshippers who need to account for shipping and supplier costs
• Anyone running ads who wants to calculate true ROAS and CAC

📁 What You Get

• 1 Excel (.xlsx) file with 6 fully functional, formula-driven worksheets
• Works in Excel, Google Sheets (import), and LibreOffice
• Pre-loaded with realistic sample data — customize with your own numbers
• Instant digital download after purchase

File format: .xlsx (Microsoft Excel 2007+)