The trustees of a small college are considering voting a pay raise for their faculty members. They want to grant a 4 percent raise for those earning more than $70,000.00, a 7 percent raise for those earning more than $50,000.00 and 5.5 percent raise for all others. However, before doing so, they want to know how much this will cost. Write a program that will print the old salary, the pay raise, and the new salary for each faculty member in a three-column format with headings. Also print the total amount of the raises, the average of the raises, and the total and average of the faculty payroll before and after the raise. Use the end of file as a sentinel value. The input data is available in Program6.txt.