The Milken Company is offering you an investment that promises you $$10,000$ at the end of $10$ years if you invest $$7,770$ today. What is the annual return on this investment?

Compute your answer as a percent rounded to $2$ decimal places. Record without a percent sign. For example, record $\mathrm{.}0848765=8\mathrm{.}48765\%$ as $8\mathrm{.}49.$

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