A firm purchased some office equipment for a total cost of $300000. The equipment generated net! income of $100000 per year. The firm's marginal tax rate is 20%. The equipment was sold at the end of the 4th year for a total of $75000. Assume that MARRY 12%/year. Calculate the net present worth (NPW) of this investment for problems 5-8. 8(15 points). If the firm used the MACRS depreciation, NPW = $22300 $24640 $26750 $$29800