Stratify allows you to enter estimated inbound shipping charges in order to help you determine the potential profit for items you're listing.
To change one of the rates, click on the rate amount on the Item Listing Details page when adding an item to a batch.
You will be brought to the Calculations page in Settings where you can make any needed adjustments to the FBA Inbound Shipping Rate field.
Please keep in mind that these amounts put in this section do not carry over to accounting. Actual inbound shipping charges are synced as overhead expenses at the close of each of your settlement periods with Amazon.