CHALLENGE A new machine costing $$100,000$ is expected to save the McKaig Brick Company $$15,000$ per year for $12$ years before depreciation and taxes. The machine will be depreciated as a sevenyear class MACRS asset. The firm's marginal tax rate is $40$ percent. What are the annual net cash flows associated with the purchase of this machine? Also compute the net investment $($NINV$)$ for this project $($Hint: See Appendix $9$A for information on MACRS depreciation. This problem is the same as Problem $5$ except for the depreciation method.$)$