Required information Problem 11-25A (Algo) Effects of operating leverage on profitability LO 11-2 [The following information applies to the questions displayed below] Thornton Training Services (TST) provides instruction on the use of computer software for the employees of its corporate clients, It offers courses in the clients' offices on the clients' equipment. The only major expense TST incurs is instructor salaries; it pays instructors $5,100 per course taught. TST recently agreed to offer a course of instruction to the employees of Novak Incorporated at a price of $440 per student. Novak estimated that 20 students would attend the course. Base your answers on the preceding information. Problem 11-25A (Algo) Part 2 The instructor has offered to teach the course for a percentage of tuition fees. Specifically, the instructor wants $270 per person attending the class. Assume that the tuition fee remains at $440 per student. f. Is the cost of instruction a fixed or a variable cost? g. Determine the profit, assuming that 20 students take the course. h. Determine the profit, assuming a 10 percent increase in enrollment (.e, enrollment increases to 22 students). What is the percentage change in profitability? i. Determine the profit, assuming a 10 percent decrease in enroliment (i.e., enrollment decreases to 18 students). What is the percentage change in profitability? (x) Answer is not complete. Complete this question by entering your answers in the tabs below. Determine the profit, assuming that 20 students take the course. Determine the profit, assuming a 10 percent increase in enrollment (i.e., enrollment increases to 2 percentage change in profitability? * Answer is not complete. Complete this question by entering your answers in the tabs below. Determine the profit, assuming a 10 percent decrease in enrollment (i.e., enrollment decreases to 18 students). percentage change in profitability? Note: Negative amount should be indicated with a minus sign