Price List Creation 
Entering various price lists into SAP Business One lets you create pricing recommendations. These are appropriate for pricing items in particular transactions.
SAP Business One provides ten predefined price lists. Adding, changing, or deleting these prices enables you to map a pricing tactic in SAP Business One. Using all or a few of the defined price lists is optional.
Furthermore, the following two price lists are automatically created and calculated by SAP Business One and cannot be manually changed:
Last Purchase Price
This price list is automatically updated when an item enters the inventory with an original price.
Last Evaluated Price
This price list is automatically updated after you run the Inventory Valuation simulation report.
NoteThe Inventory Valuation report is available to companies managing non perpetual inventory.
End of the note.
Process
Define one or more base price lists in which you enter the price of each item. You then refer all the other price lists you define to the base price list, with a particular factor. The advantage of this is that you enter prices once and SAP Business One automatically calculates the valid prices for particular cases according to the base price list.
ExampleCreating price list A for regular customers, and price list B for customers who make occasional purchases. The prices in price list B are to be 10% higher. When defining price list B, refer it to price list A with a factor of 1.1. SAP Business One then chooses the higher price for the occasional customer, whose master data record is assigned price list B.
End of the example.Adjusting all prices is possible by changing them once in the base price list. The changes are made automatically in all price lists that refer to the base price list.
Changing the ratio between two price lists is possible by, changing the factor once. Considering the previous example, the factor is changed to 1.15, setting the prices for occasional customers 15% higher than those for regular customers.