You have an investment opportunity that promises to pay you $$12,979$ in four years. Suppose the opportunity requires you to invest $$9,540$ today.

What is the interest rate you would earn on this investment?

Note: Use tables, Excel, or a financial calculator. Do not round your intermediate values. Enter your answer rounded to the nearest whole percentage. $($FV of $$1,$ PV of $$1,$ FVA of $$1,$ PVA of $$1,$ FVAD of $$1$ and PVAD of $$1)$

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