The Fleming Manufacturing Company is considering a new investment. Financial projections for the investment are tabulated below. The corporate tax rate is $21$ percent. Assume all sales revenue is received in cash, all operating costs and income taxes are paid in cash, and all cash flows occur at the end of the year. All net working capital is recovered at the end of the project.

Year $0$ Year $1$ Year $2$ Year $3$ Year $4$

Investment $ $35,000$

Sales revenue $ $18,000$ $ $18,500$ $ $19,000$ $ $16,000$

Operating costs $3,8003,9004,0003,200$

Depreciation $8,7508,7508,7508,750$

Net working capital spending $410460510410?$

a$.$ Compute the incremental net income of the investment for each year. $($Do not round intermediate calculations.$)$

b$.$ Compute the incremental cash flows of the investment for each year. $($Do not round intermediate calculations. A negative answer should be indicated by a minus sign.$)$

c$.$ Suppose the appropriate discount rate is $11$ percent. What is the NPV of the project?