| 摘要 |
PROBLEM TO BE SOLVED: To make a purchase that can give satisfaction after the purchase because there is a possibility of being able to purchase at a desired price while enjoying a price that is bargained down. SOLUTION: A seller provides the information of merchandise by using a network, when a buyer looks at the merchandise information and purchases the merchandise, the buyer presents a desired purchase amount as if the buyer bargains with the seller about the price of the merchandise, and whether or not the merchandise can be purchased at the desired purchase amount is displayed on the screen in response to the desired purchase amount according to the probability of whether or not the merchandise can be purchased at a price predetermined by the shop. |
