Your firm is contemplating the purchase of a new $$495,000$ computer$-$based order entry system. The system will be depreciated straight$-$line to zero over its $7-$year life. It will be worth $$50,000$ at the end of that time. You will be able to reduce working capital by $$38,000$ at the beginning of the project. Working capital will revert back to normal at the end of the project. Assume the tax rate is $25$ percent. Suppose your required return on the project is $11$ percent and your pretax cost savings are $$155,000$ per year.What is the annual OCF? What is the NPV of the project? please solve without using excel.