Cullumber Company accumulates the following data concerning a mixed cost, using miles as the activity level. January February Miles Total Driven Cost 8,005 $14,170 March 7,500 13,490 April Miles Driven 8,500 8,200 Total Cost $14,790 14,485 (21) Compute the variable cost per mile using the high-low method. (Round answer to 2 decimal places, e.s. 2.25.) Variable cost per mile $ (a2) Compute the fixed cost elements using the high-low method. Fixed costs $