A survey of recent high school graduates regarding literature that they studied during their high school career yielded the following information: 549 read Gone with the Wind, 969 read Moby Dick, 659 read Lord of the Flies,156 read all three, 46 read none, 149 read only Lord of the Flies, 170 read Lord of the Flies and Gone with the Wind, and 200read Gone with the Wind and Moby Dick, but not Lord of the Flies. What percent of the recent graduates read exactly one book? Round your answer to the nearest tenth, if necessary.