Crane Company accumulates the following data concerning a mixed cost, using miles as the activity level. Miles Driven Total Cost Miles Driven Total Cost January 7,990 $14,115 March 8,520 $14.785 February 7,500 13,510 April 8,205 14,485 (a 1) Compute the variable cost per mile using the high-low method. (Round answer to 2 decimal places, e.g. 2.25) Variable cost per mile