A retrotted spaceheating system is being considered for a small office building. The system can be purchased and installed for $56,000, and it will save an estimated 230,000 kilowatt-hours (kWh) of electric power each year over a eight~year period. A kilowatt-hour of electricity costs $0.12, and the company uses a MARR of 18% per year in its economic evaluations of refurbished systems. The market value of the system will be $11,200 at the end of eight years, and additional operating and maintenance expenses are $6,200 per year. Use the benefit~cost method to make a recommendation. 3 Click the icon to view the interest and annuity table for discrete compounding when the MARR is 18% per year. The conventional B-C ratio of the system is D. (Round to two decimal places.) This B-C ratio indicates that the project is |:|. acceptable not acceptable