Exam CCBA topic 1 question 202 discussion

An organization has invested $750,000 into a technology to help secure, automate, and communicate customer ordering. The solution has worked well for the past six months, but a newer technology has been developed that surpasses the abilities of the current solution and solves many defects and issues the company has with the existing solution. Purchasing the newer solution, however, means that the company will have to discard the solution that's only been in place for the past six months. What term can be assigned to the monies already implemented into the existing solution?