At State College last term, a large number of students completed a Spanish course. 66 of the students earned A's, 91 earned B's, 115 got C's, 77 were issued D's, and 57 students failed the course. If this grade distribution was graphed on pie chart, how many degrees would be used to indicate the D region? Round your answer to the nearest whole degree, but do not include a degree symbol with your response