With specific process, not excel form

A 4-year 6% coupon bond that will pay $1,000 at maturity (its par value). The bond pays interest annually at the end of each yearand is priced today to yield 6%. If, one year later, (after the first interest payment), the bond is priced to yield 10%. What is the price today and what will be the new price if you decide to sell in one year? (5 points) What would be your holding period return for the one year? (5 points)