Score: 0 of 1 pt P3-21 (similar to) Discount rate Future Bookstore sels books before they are published. Today, they are offering the book Adventures in Finance for $1538, but the book will not be published for another 2 years. The retail price when the book is published will be $20. What is the discount rate Future Bookstore is offering its customers for this book? What is the discount rate Future Bookstore is offering its customers for this book? % (Round to two decimal places.)