help please

Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate Oakmont Company has an opportunity to manufacture and sell a new product for a four-year period. The company's discount rate 13\%. After careful study, Oakmont estimated the following costs and revenues for the new product: When the project concludes in four years the working capital will be released for investment elsewhere within the company. Click here to view Exhibit 12B-1 and Exhibit 128-2, to determine the appropriate discount factor(s) using tabies. Required: Calculote the net present value of this investment opportunity. (Round your final answer to the nearest whole dollar amount.)