Please show all detailed work without the use of Excel

You are given following three bonds: Assume that interest rate changed from 10% to 15%. a. Compute the percentage change in price of each bond. [ 3 marks] Hints: % change =100[( new/old) 1] b. Now, compare the price change between Bond P \& Q. Which one has greater price change - Bond P or Q? [2 marks] c. Now, compare the price change between Bond Q \& R. Which one has greater price change - Bond Q or R? [2 marks] d. What inferences can you draw from part (b) and (c) above? [ 3 marks ]