You can edit a price list as required when the requirement changes. 

To edit a price list

  1. Go to ADMIN SETUP > Pricing Administration > Price Lists. The Price Lists page with all price lists is displayed.
  2. Search for the price list you want to update.
  3. Click the price list name link. The Price List Details page is displayed.
  4. On the Details tab, update the required fields.
  5. Click Save.