Real Value of an Investment

Real Value of an Investment

IB Year 5 | Grade 11
7 marks
TGM Original
A deposit of $12,000 earns 4% interest compounded annually. Prices rise by 2.5% each year. There are no fees, withdrawals or further deposits. - Find the account balance after five years, to the nearest cent. - Express this balance in purchasing power at the date of the deposit, to the nearest cent. - Find the percentage change in purchasing power over the five years. Explain why subtracting the annual rates does not give the exact annual real return.

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Answer:(a) \(\$14\,599.83\); (b) \(\$12\,904.13\) in initial-date dollars; (c) \(7.53\%\) increase; annual real return \(1.4634\ldots\%\).

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