You have been asked to evaluate two different machines and provide a recommendation to your boss. Machine A costs $165,000 up front, has a 4-year life, and an annual after-tax OCF of negative $13,000 per year. Machine B costs $180,000 up front, has a 5-year life, and an annual after-tax OCF of negative $11,750. If the discount rate is 8 percent, what is the equivalent annual cost of each machine? What is the recommendation you would make to your boss regarding which machine the company should purchase?