Given the following data calculate the Net Present Value. Please provide step by step guidance or clear explanation. Thanks!

Discount Rate 18% Project Duration in Years 4 Cost of equipment needed Working capital needed Overhaul of the equipment in year two Salvage value of the equipment in four years Annual revenues and costs: Sales revenues Variable expenses Fixed out-of-pocket operating costs $230,000 $84,000 $9,000 $12,000 $400,000 $195,000 $85,000 *Calculate the Net Preent Value