Please answer as soon as possible. Thank you! Please show how to solve in excel.

Uliana Company wants to issue new 20 -year bonds for some much-needed expansion projects. The company currently has 10 percent coupon bonds on the market that sell for $1,140, make semiannual payments, have a par value of $1,000, and mature in 20 years. What coupon rate should the company set on its new bonds if it wants them to sell at par? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16