A company has invested 500 000 in a marketing survey and 200 000 in new tooling for a potential product. The outcome was that the survey indicated a high potential market segment for a product however the tooling will not be possible to use. Now the directors have decided to develop a new product for this segment and the investment is 400 000 and the general overhead cost is 35% of total investment. What cost should be included in the project and what are the theoretical arguments