Suppose you bought a $$1,000$ face value bond with a coupon rate of $5$ percent one year ago. The purchase price was $$980\mathrm{.}8.$ You sold the bond today for $$988\mathrm{.}9.$ If the inflation rate last year was $1\mathrm{.}8$ percent, what was your exact real rate of return on this investment? $\_\_\_\_\_\_\%$

Instruction: Enter your response as a percentage with two decimal places.

For example, if your answer is $0\mathrm{.}1213=12\mathrm{.}13\%,$ please only enter $"12\mathrm{.}13",$ please do not enter $"0\mathrm{.}1213"$ or $"12\mathrm{.}13\%",$ the system may not recognize the $\%$ sign. You may put negative signs if necessary,