Abstract: An assisting system for pricing products and maintenance/administration service costs is provided which includes: a project data storing section for storing data regarding business contents; a task requirement defining section for decomposition into task units for which risks can be individually assessed based on data regarding contents of the complex total business structure; a cost and risk data storing section for storing cost and risk information regarding tasks to be executed in the business which occur during the term of a contract; a risk type determining section for determining assessing means while correlating respective tasks to be executed in the business which occur during the term of a contract with cost and risk data stored in the cost and risk data storing section; and a total cost and risk assessing section for calculating tasks to be executed in the business which occur during the term of a contract.