In early 2015 , Ford Motor (F) had a book value of equity of $24 billion, 3.9 billion shares outstanding, and a market price of $16.33 per share. Ford also had cash of $21.3 billion, and total debt of $1199 billion. Three years later, in early 2018 , Ford had a book value of equity of $34.5 billion, 10.5 billion shares outstanding with a market price of $11.37 per share, cash of $26.1 billion, and total debt of $156.8 bilion. Over this period, what was the change in Ford's a. market capitalization? b. market-to-book ratio? c. enterprise value? a. Over the 3-year period, what was the change in Ford's market capitalization? The change in Ford's market capitafization was : billion (Round to two decimal places)