P = A(1+i)ⁿ, where: A= initial value I = interest in % n= period of compound investment. However, if the interest is paid twice a year, that means you have to divide the interest by 2 and the period becomes twice n P = 875(1+9.5%/2)⁵ˣ² P = 875(1+4.75%)¹⁰ P =875( 1.0475)¹⁰ P = $1,391.7