A new project is expected to produce sales of 4,800 units per year with a net cash flow of $53 each for the next 20 years. The discount rate is 16 percent and the initial investment is $1,625,000. After the first year, the project can be dismantled and sold for $1,475,000. After the first year, the project should be abandoned if annual sales are expected to be less then which number of units? ok t nces