Can you please do this wkthout using excel, our professor wants us to show our work?

15. Bond Returns. You buy an 8% coupon, 10-year-maturity bond for $980. A year later, the bond price is $1,200. (Assume annual coupon payments.) ( LO6-2) a. What is the new yield to maturity on the bond? b. What is your rate of return over the year