A forklift will last for only 3 more years. It costs $5,700 a year to maintain. For $20,000 you can buy a new lift that can last for 12 years and should require maintenance costs of only $2,700 a year. a-1. Calculate the equivalent cost of owning and operating if the discount rate is 6% per year? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Equivalent cost a-2. Should you replace the forklift? Yes No b-1. Calculate the equivalent cost of owning and operating if the discount rate is 12% per year? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Equivalent cost b-2. Should you replace the forklift? Yes No