a bond was issued four years ago with a face value of $1000,$ a coupon of $4\mathrm{.}75.$ coupon payments are paid semiannually, an original maturity of $30$ years, and is currently selling at $88.$ The bond has a call option after the first $10$ years of its original maturity at a price of $103.$ calculate the bonds YTM$,$ YTC$,$ CY$,$ and CGY using a financial calculator