The total number of pages in college textbooks has been found to be a normally shaped distribution with a mean of µ = 325 pages in length and a standard deviation of 115. Find the percentage of books that are between 300 and 400 pages in length. Round to the nearest hundredth place if a fraction. [Note: If your calculated value is not identical to one of the values below, but within plus or minus 0.25 of an answer below, assume it's a rounding error and select the answer that is closest to your calculated value.]