need in an excel spreadsheet with all formulas clearly shown

4.12 Biomet Implants is planning new online patient di- agnostics for surgeons while they operate. The new system will cost $300,000 to install in an op- erating room, $5000 annually for maintenance, and have an expected life of 4 years. The revenue per system is estimated to be $80,000 in year 1 and to increase by $10,000 per year through year 4. Determine if the project is economically justified using PW analysis and an MARR of 10% per year