I need help with this question please!

"Chapman Machine Shop is considering a four-year project to improve its production efficiency. Buying and installing a new machine press for $620,000 will result in annual revenue increase of $421000. However, the cost of operation (COGS, SG&A, etc.) will increase by $210000 per year. Last month, Chapman also spent $15000 to analyze the best location to place this new machine press. The press falls in the MACRS 5-year class, and it will have a salvage value at the end of the project of $98,000. The MACRS rates are .2, .32, .192, .1152, .1152, and .0576 for Years 1 to 6, respectively.

Also, the press requires an initial investment in spare parts inventory of $20,000, along with an additional $3,600 in inventory for each succeeding year of the project. In addition, account receivables and account payables are projected to increase initially by $6000 and $2000 respectively, with no further increases in subsequent years. All other working capital accounts will stay the same as before. The inventory, account receivables and account payables will return to its original level when the project ends. The shop's tax rate is 35 percent and its project discount rate is 11 percent.

Should the firm buy and install the machine press? Display the relevant cash flows and compute NPV, IRR, and PI in Excel to inform your decision."