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STO A former is considering two different tractors for his business. Each tractor has a different price but also a different life span. The former will have to replace either tractor at the end of its useful life and start again. We will assume that the farmer has a discount rate of 9.00%. MODEL. A: Initial cost of $14,863.00, Yearly operating cost of $999.00 for 8.00 years. MODEL B: Initial cost of $12,782,00, Yearly operating cost of $1,578.00 for 9.00 yours, What is the NPV of buying project B? (HINT: The NPV will be negative) Submit Answer format: Currency: Round to: 2 decimal places