마진 계산기 — 쇼핑몰 셀러 수익 도우미

🧾 Margin Calculator for Online Store Sellers — Everything from Commissions to Net Profit in One Place! The "Shopping Mall Seller Margin Calculator" is a profit analysis tool for sellers that automatically applies commissions from various online stores, including Smart Store, Coupang, and Gmarket, and quickly calculates accurate margin rates and net profits. 📦 Key Features • Automatic commissions applied to each store — Simply select a category and commissions are automatically entered. • Enter product cost, selling price, and shipping costs → Real-time margin calculation. • Calculate VAT inclusion, advertising costs, card fees, and more. • Supports four languages — Korean, English, Chinese, and Japanese. • Save/load functionality — Easily repeat frequently used calculations. • Intuitive UI — Easy to use even for beginner sellers. 👤 Recommended for: • Sellers operating on platforms like Smart Store, Coupang, Gmarket, and 11st. • Beginner sellers curious about product-specific margins/profits. • Entrepreneurs who need to predict revenue, including commissions and advertising costs. • Sellers who want quick simulations instead of complex calculations. 📈 Stop calculating with Excel — Manage your profits smartly with the 'Margin Calculator' today!