A larger order does not guarantee better economics
Volume can spread some fixed handling and acquisition costs, but percentage-based fees, fulfillment, product cost, and discounts still apply. Calculate the actual order structure instead of assuming every additional unit is equally efficient.
Model each quantity tier
- Unit price and total net sales after the proposed discount.
- Marketplace and fulfillment costs for the actual pack or order configuration.
- Product, preparation, shipping, and account-service cost.
- Expected returns, damage, or partial-order issues.
- Contribution profit per unit and per complete order.
Look for real operating savings
A quantity discount is easier to support when one order reduces pick, pack, shipping, customer acquisition, or service cost per unit. Document which saving funds the discount instead of using a round percentage without a cost basis.
Set a floor and review actual mix
Protect a minimum contribution amount for every tier. After launch, review which buyers use the discount, average order size, repeat rate, returns, and whether discounted orders replaced purchases that would have happened at the regular price.