Nakamura Inc. issued 12% semi-annual coupon bond with maturity of 10 years and face value $1,000. What is the price you are willing to pay for Nakamura Inc. bond if the yield to maturity is 10%?

What would the % change in price for Nakamura, if the yield decreases to 9%.

Sakura Inc. issued a similar bond (same time to maturity, face value and yield at 10% as in Nakamura) but with a higher coupon rate. Will the % change in price for Sakura higher or lower than Nakamura if the yield decrease to 9%?