c) Seduck has just replaced a set of hydraulic screens that had been in operation for 6 years with a newer screening system that cost $180,000 installed. The old system cost $140,000 and had been depreciated as a 10-year MACRS asset. Its salvage value is $10,000. What is the NINV for the new equipment? Assume a 40% tax rate. Use the rounded MACRS schedule listed below: [10-Year Depreciation Schedule: 10%, 18%, 14%, 12%, 9%, 7%, 7%, 7%, 7%, 6%, 3%]. please show all step by step working