How to compute using a financial calculator

A project requires an initial investment in equipment of $$81,000$ and then requires an initial investment in working capital of $$19,000($at t $=0).$ You expect the project to produce sales revenue of $$100,000$ per year for three years. You estimate manufacturing costs at $60\%$ of revenues. $($Assume all revenues and costs occur at year$-$end, i$.$e$.,$ t $=1,$ t $=2,$ and t $=3.)$ The equipment depreciates using straight$-$line depreciation over three years. At the end of the project, the firm can sell the equipment for $$20,000$ and recover the investment in net working capital. The corporate tax rate is $30\%$ and the cost of capital is $15\%.$ Calculate the NPV of the project:

$$3,840.$

$$4,122\mathrm{.}46.$

$$-2,735.$

$$7,342.$