A benchmark index has three stocks priced at $60, $65, and $70. The number of outstanding shares for each is 444,000 shares, 555,000 shares, and 777,000 shares, respectively. Suppose the price of these three stocks changed to $40, $70, and $90, respectively and number of outstanding shares did not change, what is the value-weighted index return? What is the equal-weighted index return?What is the price-weighted index return?