Go to www.rnsn.com/en-ca/money to get data to update each firm's information in Table 7.4. Type each firm name in the "Name or Symbol" box and click on "Go.• Record the previous close stock price and click on "Highlights• to get book value per share. Then calculate the price-to-book-value ratio. Now compare the new data to the data in Table 7.4. Which stock price has changed by the greatest percentage since 2014, when the table was created? Have the book values for any firm changed much? How much have the price/book value ratios changed? Which seems to be more stable, stock price, book value per share, or price/book value? What do you think causes the variability of these measures to differ?