Blossom, Inc., has collected the following information on its cost of electricity: Machine Hours Total Electricity Costs January 500 $240 February 540 $320 March 360 $210 April 440 $220 May 670 $270 June 690 $340 July 300 $160 August 540 $260 September 230 $110 October 740 $340 November 830 $350 December 600 $310 (a) Identify the high and low points. Machine Hours $ High point $ Low point ta Using the high-low method, compute the variable cost of electricity per machine hour. (Round unit cost to 2 decimal places, e.g. 52.75.) Variable cost $ per machine hour