4. Construct an Excel spreadsheet to answer the questions in Problem 8-43 as given below. 8-43 Calculating NPV and IRR Using Excel. Rouse Production Company would like to further automate its production process by purchasing production equipment for $660,000. The equipment is expected to have a useful life of 8 years, and will be sold at the end of 8 years for $40,000. The equipment requires significant maintenance work at an annual cost of $75,000. Labor and material cost savings, shown in the table, are also expected to be significant. Year 1 $160,000 Year 2 $190,000 Year 3 $200,000 Year 4 $240,000 Year 5 $280,000 Year 6 $220,000 Year 7 $180,000 Year 8 $155,000 The company's required rate of return is 11 percent. Required: a. Use Excel to calculate the net present value and internal rate of return in a format similar to the Computer Application spreadsheet shown in the chapter Should the company purchase the production equipment? Explain