Pleasee help me im doing something wrong

Matheson Electronics has just developed a new electronic device that it believes will have broad market appeal. The company has performed marketing and cost studies that revealed the following information: a. New equipment would have to be acquired to produce the device. The equipment would cost $258,000 and have a six-year useful life. After six years, it would have a salvage value of about $24,000. b. Sales in units over the next six years are projected to be as follows: c. Production and sales of the device would require working capital of $58,000 to finance accounts receivable, inventories, and dayto-day cash needs. This working capital would be released at the end of the project's llfe. d. The devices would sell for $45 each; variable costs for production, administration, and sales would be $30 per unit. e. Fixed costs for salarles, maintenance, property taxes, insurance, and straight-line depreciation on tige equipment would total $147,000 per year. (Depreciation is based on cost less salvage value.) f. To gain rapid entry into the market, the company would have to advertise heavily. The advertising costs would be: 9. The company's required rate of return is 16%. Click here to view and Exhibit 148-2, to determine the appropriate discount factor(s) using tabies. Required: 1. Compute the net cash inflow (incremental contribution margin minus incremental fixed expenses) anticipated from sale of the device for each year over the next six years. 2-a. Using the data computed in (1) above and other dota provided in the problem, dotermine the net present value of the proposed investment. 2.b. Would you recommend that Matheson accept the device as a new product? g. The company's required rate of return is 16%. Click here to view Exhibit 14B-1 and Exhibit 14B-2, to determine the appropriate discount factor(s) using tables. Required: 1. Compute the net cash inflow (incremental contribution margin minus incremental fixed expenses) anticipated from sale of the de for each year over the next six years. 2-a. Using the data computed in (1) above and other data provided in the problem, determine the net present value of the propose investment. 2-b. Would you recommend that Matheson accept the device as a new product? Complete this question by entering your answers in the tabs below. Compute the net cash inflow (incremental contribution margin minus incremental fixed expenses) anticipated from sale of the device for each year over the next six years. (Negative amounts should be indicated by a minus sign.) Complete this quytstion by entering your answers in the tabs below. Using the data computed in (1) above and other data provided in the problem, determine the net present value of the proposed investment. (Negative amounts should be indicated by a minus sign. Round your final answer to the nearest whole dollar amount.)