Data-Driven Seller Tools
Accurate profit modeling for Amazon FBA & Shopify
VendNexa helps global dropshippers and marketplace sellers stress-test margins before they scale inventory, ads, or sourcing.
Profit Calculators
Amazon FBA
Amazon Calculator 3.6v
FBA size tiers, referral fees, storage, Private Label & Arbitrage landed costs — live unit economics.
Open calculator →Shopify
Shopify Calculation 5.2v
Revenue, shipping, payment gateway fees, and CPA — instant net profit, margin, and ROI.
Open calculator →TikTok Shop
TikTok Profit Calculator
6.5% commission, payment processing, and adjustable 10–25% affiliate payouts — May 2026 rates.
Open calculator →eBay
eBay Profit Calculator
Final value fee 13.25% plus per-order fixed fee — currency-aware profit modeling.
Open calculator →Enterprise
Bulk Dual-Platform Analyzer
Upload a CSV — run up to 50 SKUs through Amazon FBA (30% est. fees) or Shopify gateway math in one pass.
Open bulk tool →