StockInitial PriceFinal PriceShares (millions) ABCK25K3020 XYZK100K901 (1) Determine the portfolio initial and final value and the percentage change in portfolio value (3 marks) (2) Calculate the initial and final price-weighted index and the percentage change in the index. (3 marks) (3) Explain the weaknesses of the measure above (4 marks) (4)Calculate the market-value weighted index and the percentage change in the index. Compare that to the return of a portfolio that holds K500 of ABC stock for every K100 of XYZ stock(an index portfolio)(4 marks)