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This is from the NINJA questions in BEC
Given a 10% discount rate with cash inflows of $3,000 at the end of each year for five years and an initial investment of $11,000, what is the net present value?
A.$(9,500)
B.$370
C.$4,000
D.$11,370
I choose A. But the solution says B. I thought it wanted NPV?
Solution:
The net present value is the excess of the discounted present value of future cash returns less the investment cost.
The formula to calculate present value for any single future payment is PV = Payment ÷ (1 + r)n, where r is the interest rate and n is the number of periods.
The present value of the payment in the first year is $3,000 ÷ 1.1, or $2,727.
The present value of the payment in the second year is $3,000 ÷ (1.1 × 1.1), or $2,479.
The present value of the payment in the third year is $3,000 ÷ (1.1 × 1.1 × 1.1), or $2,254.
The present value of the payment in the fourth year is $3,000 ÷ (1.1 × 1.1 × 1.1 × 1.1), or $2,049.
The present value of the payment in the fifth year is $3,000 ÷ (1.1 × 1.1 × 1.1 × 1.1 × 1.1), or $1,863.
The sum of the present value of the five future payments is $11,372. The cost of the investment is $11,000, so the net present value is $11,372 – $11,000, or $372, rounded to $370.
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