When setting up Incremental Rates in the Advanced Shipping Calculator app, you have access to the following features:

• Increment value: Set a specific amount or product total percentage to add at each increment
• Increment interval: Define how often the increment is applied (e.g., every 2 items, every $100 of cart total)
• Calculation parameter: Choose what the increment is based on (e.g., quantity, weight, product line total)
  
  • Note: When the Calculation Parameter is set to Product Variant Price, an additional option becomes available: “Multiply Product Shipping Value By Product Quantity”
• Fixed value or percentage: Option to use either a fixed dollar amount or a percentage of product total for the increment. For percentage-based increments, the calculation is applied separately to each product line based on the selected Calculation Parameter.
• Charge full or prorated increment:
  
  • Full increment: Charges the complete increment for any partial increment (e.g., $3 for 28 items if set to $1 per 10 items)
  • Prorated increment: Charges proportionally for partial increments (e.g., $2.80 for 28 items if set to $1 per 10 items)
• Starting point: Set an initial threshold before increments begin. For instance, start charging increments only after $50 cart value.
• Minimum and maximum rates: Set floors and ceilings for your shipping costs

These features allow for highly customizable shipping rates that can adapt to various business needs and order scenarios.