I think choosing a safe price for company product has a huge effect on the sales tax because.of market inflation and life of product it is important to aim low and sell high also if a product is expected to sell big time there should be a steady sales tax on the ticket item because of consumer relations to the product. Assuming someone wants to buy your product and the competition has the same product you would want to have a reasonable sales tax so that the consumer will have something to remember and will want to keep up with as regards to shopping at their favorite stores