The pricing model you are described typically a “Per-Unit” or “Volume-Based” pricing model. In this model, the cost of the service is determined by the number of units or items that are processed, rather than by the size or weight of the package. Under this model, a customer who ships 25 items would pay more than a customer who ships 10 items, and the cost per item would typically decrease as the volume of items shipped increases. This is often referred to as a volume discount, where the more items a customer ships, the lower the cost per item becomes. This type of pricing model is commonly used by fulfillment centers and other logistics providers, as well as by some e-commerce platforms and marketplaces. It is a way to incentivize customers to ship more items, and can help to increase the overall volume of business for the provider while also providing cost savings for the customers. To combine a per-unit or volume-based pricing model with an order-based pricing model, you could use a tiered pricing structure. In this structure, the cost per unit or item would decrease as the total number of items in the order increases.
For example, you could set up pricing tiers like this:
1-10 items: $X per item
11-50 items: $Y per item
51-100 items: $Z per item
Under this pricing structure, a customer who ships a single order with 5 items would pay the highest rate per item, while a customer who ships 100 items in a single order would pay the lowest rate per item. To incentivize customers to ship more orders, you could also offer discounts or special rates for customers who reach certain order volume thresholds. For example, you could offer a 10% discount to customers who ship more than 5 orders in a given month, or a reduced per-item rate for customers who consistently ship more than a certain number of items per order. By combining a per-unit or volume-based pricing model with an order-based pricing model, you can create a pricing structure that rewards both volume and frequency of business, while still providing cost savings to the customer.
The pricing model you are describing could be called a “Combined Per-Unit and Order-Based Pricing Model” or a “Tiered Volume Discount Pricing Model”. This model combines a per-unit or volume-based pricing structure with an order-based pricing structure, using a tiered system that provides cost savings for both the total number of items and the number of orders placed.