Seven years ago, a semi-annual coupon bond with a 10% coupon rate, $1,000 face value and 15 years to maturity was issued by Corn Inc. Teddy bought this bond two years ago when the market interest rate was 12%. And now the market interest rate is 5%. If teddy sells the bond now, what is Teddys capital gain/loss yield on the bond investment? Find the initial purchase price and selling price, then determine the yield