Please answer all parts, thank you in advance! :)

You are given the following information regarding prices for a sample of stocks. PRICE Stock T T + 1 A $88 Number of Shares 1,800,000 11,000,000 26,000,000 $74 26 25 41 36 a. Construct a price-weighted index for these three stocks, and compute the percentage change in the index for the period from 7 to T + 1. Do not round intermediate calculations. Round your answer to two decimal places. % b. Construct a value-weighted index for these three stocks, and compute the percentage change in the index for the period from T to T + 1. Do not round intermediate calculations. Round your answer to two decimal places. %