A certain medical device will result in an estimated $70,000 reduction in hospital labor expenses during the beginning of first and second years of operation. Additional operating expenses for the device (maintenance, electric power, etc.) are $3,200 annually, and they increase by $150 per year. It is anticipated that the device will last for 12 years and will have no market value at that time. If the MARR is 10% per year draw and calculate the AW of the project. Explain your results.