please help me solve this hw problem as I dont know how

Mher spending $9,800 on clent development, you have luat been offered a big producton contract by a new client. The conitract will add 5109,000 to your cevenues for each of the rent five years and wil be worthess at ithe end of the project. Your current probuction manager eams $17, 000 per year. Since she in buvy with ongolng projects, you are planning to hire an assistant at Be coo par year diecout rate is 15,1\$. What is the NpP of the contact? (Note. Assume that ele equpment is put into ise in year f.)