rk-Ch. 18 Cost Volume Profit Question 8 of 8 costs. 0/3.5 The controller of Carla Vista Industries has collected the following monthly expense data for analyzing the cost behavior of electricity Total Electricity Costs Total Machine Hours January $1,940 260 February 3,040 350 March. 3,510 490 April 4,650 695 May 3,240 480 June 4,930 700 July 4,120 650 August 3,800 570 September 5,140 670 October 4,370 640 November 3,290 350 December 6.230 720 MacBook Air P