Irbid Company has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Month Total Total Maintenance Costs Machine Hours January 3,000 JOD 350 February 2,600 275 March 3,722 500 April 4,780 690 May 3,200 400 June 4,800 715 Instruction: Determine the fixed- and variable-cost components using the high-low method