The owner of Black Hills Cafe is considering the purchase of a new, semi-automatic coffee-making machine. The machine will cost $72,000 and last 5 years. The machine is expected to have no salvage value at the end of its useful life. The owner estimates that the new machine will generate $19,400 in after-tax savings each year during its life (including the tax effect of depreciation). The depreciation charge is the same for accounting and tax purposes. Use Appendix A for your reference. (Use appropriate factor(s) from the tables provided.) Required Compute the profitability index on the proposed candy machine, assuming an after-tax hurdle rate of: (a) 4 percent, (b) 6 percent, and (c) 8 percent. (Round your final answers to 2 decimal places.) Profitability Index (a) 4 percent (b) 6 percent (c) 8 percent