6 ABC Machining Inc. bought a new machining center for $200000. The center generated new revenue of $72500 per year. The operation costs for the center averaged $8000 per year. Following IRS regulations, the center was depreciated using the MACRS method with a recovery period of 7 years. The center was sold for $40000 after 5 years of service. The company is in the 34% tax bracket. b (10 pts) Determine the after-tax net present worth for this investment over the 5-year service period, if the compony uses the after-tax MARR rate of 12%/year. $13700 O $15115 $16300 517885