NPV$.$ Grady Precision Measurement Tools has forecasted the following sales and costs for a new GPS system: annual sales of $45,000$ units at $$17$ a unit, production costs at $39\%$ of sales price, annual fixed costs for production at $$180,000.$ The company tax rate is $35\%.$ What is the annual operating cash flow of the new GPS system? Should Grady Precision Measurement Tools add the GPS system to its set of products? The initial investment is $$1,320,000$ for manufacturing equipment, which will be depreciated over six years $($straight line$)$ and will be sold at the end of five years for $$380,000.$ The cost of capital is $11\%.$