please solve this on excel

(NPV or IRR) You are considering buying an asset that has a 3-year life and costs $2,000. As an alternative to buying the asset, you can lease it for $600 per year; the first payment is due today and the following three payments at the end of the next years. Your bank is willing to lend you money for 15%. a. Should you lease or purchase the asset? b. What is the largest lease payment you would be willing to make