7. Consider the following information on the stock market in a small economy. Company Shares Outstanding Price, end Price, beginning of year of year 1 100 $100 $94 2 1,000 $20 $25 3 10,000 $3 $6 a. Compute a price-weighted stock price index for the beginning of the year and the end of the year. What is the percentage change? b. Compute a value-weighted stock price index for the beginning of the year and the end of the year. What is the percentage change