text: what does it mean to cost complete something, say a project?   the most important meaning of costing a project is to specify the value of the following factors involved with that project; 1- time spent to finish it = money  2- material used for the project = money 3- price of the idea if new = money 4- labour, if workmanship is needed = money 5- marketing campaign to sell that project = money 6- profits to be added to all above = money  the sum of all is the project cost. knowing all those factors means you are on top of your project armed with knowledge.