The controller of Pharoah Production has collected the following monthly expense data for analyzing the cost behavior of electricity costs. Total Electricity Costs Total Machine Hours January $2,570 250 February 2.910 320 March 3,580 460 April 4.590 690 May 3.210 420 June 4.910 790 January $2,570 250 February 2.910 320 March 3.580 460 April 4.590 690 May 3.210 420 June 4,910 790 July 4,140 625 August 3.880 520 September 5.090 675 July 4,140 625 August 3,880 520 September 5,090 675 October 4.270 630 November 3,260 320 December 6,490 810 (a) Determine the fixed- and variable-cost components using the high-low method. Fixed-costs $ Variable-costs