re given the following information regarding prices for a sample of stocks. PRICE Stock Number of Shares A 1,900,000 $78 B 13,000,000 30 30,000,000 21 a. Construct a price-weighted index for these three stocks, and compute the percentage change in the index for the period from To T + 1. Do not round intermediate calculations. Round your answer to two decimal places. T + 1 $98 44 33 b. Construct a value-weighted index for these three stocks, and compute the percentage change in the index for the period from to T+ 1.Do not round intermediate calculations. Round your answer to two decimal places %