The controller of Sunland Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Month Total Maintenance Costs Total Machine Hours January $2,710 350 February 3,010 400 March 3,610 550 April 4,510 640 May 3,210 550 June 4,710 750 Determine the variable cost components using the high-low method. (Round answer to 2 decimal places e.g. 2.25.) Variable cost per machine hour $ eTextbook and Media