| 摘要 |
The present invention relates to a transaction calculating method and to an apparatus and a system for the same and, more specifically, to a transaction calculating method and to an apparatus and a system for the same in which a transaction service device of a sales agent transmits a loanable money amount to a financial support device of a financial company by calculating the loanable money amount by using seller credit rating information which is produced based on product sales information of a seller and the financial company, which receives the calculated loanable money amount, performs a loan to the seller depending on the loanable money amount. The transaction service device according to an embodiment of the present invention for the forementioned includes: a service storage unit which stores credit rating information in accordance with any one of seller information; a service communication unit which transmits and receives information with one or more user terminals and a financial support device; and a service control unit which checks the credit rating information in accordance with the seller information stored in the service storage unit if transaction information, which includes the seller information from any one user terminal, is received through the service communication unit and transmits information of calculated loanable money amount to the financial support device through the service communication unit by calculating a money amount which is loanable to a seller according to the credit rating information. |
