A company is considering the purchase of a new machine for $79,380. Management predicts that the machine can produce soles of $20,500 each year for the next 10 years. Expenses are expected to include direct materials, direct labor, and factory overhead totaling $17.200 per yeac, ineluding depreciation of $4,800 per year. What is the payback period for the new machine? 1290 years 6.90 years 980 years. 20.90 years. 8.40 years