Calculate Etsy listing fees, 6.5% transaction fees, payment processing, regulatory operating fees, and Offsite Ads impact.

Calculate the optimal Economic Order Quantity (EOQ). Minimize total inventory costs by balancing purchase ordering expenses against annual holding costs.

Calculate eBay final value fees, insertion fees, promotional ad rates, managed payments, and net profit by category.

Calculate true per-package shipping and fulfillment expenses including carrier postage, fuel surcharges, packaging materials, pick-and-pack labor, and residential delivery fees.

Calculate true net profit margins for dropshipping stores factoring in supplier product cost, international shipping, ad spend (CPA/CAC), payment processing, and return loss reserves.

Calculate dimensional (volumetric) weight across FedEx, UPS, USPS, DHL, and international air freight divisors (139 vs 166 vs 5000 cc/kg) to avoid oversized box penalties.

Calculate the true carrying cost of dead stock, capital tied up, warehouse holding losses, and optimal clearance markdown discounts to liquidate inventory.

Calculate Customer Retention Rate (CRR), customer churn rate, cohort loyalty retention, and net revenue impact for e-commerce and subscription SaaS businesses.

Calculate your LTV:CAC ratio and customer acquisition payback period. Benchmark unit economics against venture capital standards for SaaS and e-commerce.

Calculate the true financial cost of merchant chargebacks, dispute processing fees, lost inventory, shipping costs, and Visa/Mastercard monitoring thresholds.