A company is considering the purchase of a new machine for $83,160. Management predicts that the machine can produce sales of $21,000 each year for the next 10 years. Expenses are expected to include direct materials, direct labor, and factory overhead totaling $17,600 per year, including depreciation of $5,000 per year. What is the payback period for the new machine? Multiple Choice 8.50 years. 13.00 years. 7.00 years. 9.90 years. 21.00 years.