Big Sky Mining Company must install $1.5 million of new machinery in its Nevada mine. It can obtain a bank loan for 100% of the purchase price, or it can lease the machinery. Assume that the following facts apply. 1. The machinery falls into the MACRS 3-year class. 2. Under either the lease or the purchase, Big Sky must pay for insurance, property taxes, and maintenance. 3. The firm's tax rate is 25%. 4. The loan would have an interest rate of 15%. It would be nonamortizing, with only interest paid at the end of each year for four years and the principal repaid at Year 4. 5. The lease terms call for $400,000 payments at the end of each of the next 4 years.