A Tesla coupon bond with a face value of $1,000 has a coupon rate of 5% with annual coupons and it will mature in 5 years. If it is currently trading at $813.5, what is its yield-to-maturity? Round to the tenth of a percent (e.g., 4.32% = 4.3) [Hint: Use Excel's "rate" function as explained in the text. Make sure you set the cell to show decimal places.]