You are considering whether to replace old equipment. The existing equipment can be sold today for $50, or it could be kept for 1 more year and sold for $10. It would cost $30 to operate for the year. New equipment would cost $400 today and has a useful life of 10 years. At the end of 10 years it could be sold for $40. It will cost $14 per year to maintain. Would you recommend keeping the old equipment or replacing with new if the cost of capital was 12%