设计用于估算项目出价的工具

This tool will be used to estimate project costs for clients. These are not necessarily software projects. Currently there is an Excel spreadsheet with a number of categories with individual tasks for each category. Each of these has some sort of weight or constant involved and is partially responsible in determining the final bid estimate. Each of these tasks has attributes for setup hours, setup cost, operation hours and cost, etc. Currently there is no strictly defined method of coming up with the bids.This tool will be used to estimate project cost