Current Attempt in Progress Wildhorse Company accumulates the following data concerning a mixed cost, using units produced as the activity level. Units Produced Total Cost March 10,000 $18,000 April 9,000 16,620 May 10,500 18,564 June 8,740 16,012 July 9,500 17,080 (a1) Compute the variable cost per unit using the high-low method. (Round answer to 2 decimal places, e.g. 2.25.) Variable cost per unit $ eTextbook and Media Attamant