Please show all work and working it out in excel and using NPV formula. Im having issues with the depreciation and OCF.

Masters Machine Shop is considering a four-year project to improve its production efficiency, Buying a new machine press for $385,000 is estimated to result in $145,000 in annual pretax cost savings. The press falls in the MACRS five-year class, and it will have a salvage value at the end of the project of $45,000. The press also requires an initial investment in spare parts inventory of $20,000, along with an additional $3,100 in inventory for each succeeding year of the project. The shop's tax rate is its discount rate is 9 percent. Refer to Table 10.7. points Skipped Calculate the NPV of this project. (Do not round intermediate calculations and round your answer to 2 decimal places, e.g. 32.16.) eBook NPV Print References Should the company buy and install the machine press? Yes No